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Pri procesih varjenja in rezanja se sproščajo različni dimni plini, ki imajo v veliki meri vpliv na zdravje operativnih oseb. V okviru magistrskega dela je bilo izvedeno vzorčenje in analiza delcev prahu, ki se sproščajo pri različnih postopkih varjenja. Postopki varjenja so potekali po TIG in MIG postopku z različnimi dodajnimi materiali ter različnimi procesnimi parametri. Pri vseh postopkih je bil uporabljen isti osnovni material in sicer AlSi zlitina. Dimni plini, ki so se sproščali pri procesu varjenja so bili zajeti z odsesovalno napravo GilAir Plus v kateri je bil nameščen membranski filter, ki služi za filtracijo in zajemanje delcev prahu. Pretok zraka pri zajemanju delcev prahu je znašal 0,5 l/min, kar je tudi maksimalna vrednost glede na prepustnost filtra. Čas vzorčenja je pri vseh postopkih potekal v časovnem intervalu ene minute in sobni temperaturi 25 °C. Kemijska analiza delcev prahu je bila izvedena z vrstičnim elektronskim mikroskopom opremljenim z EDS analizatorjem. Klasifikacija delcev je bila izvedena v skladu s standardom ISO 13322 glede na velikost, geometrijo in število delcev. During the welding and cutting processes, various fumes are released, which have a great impact on the health of the operating workers. As part of the master's thesis, sampling and analysis of dust particles released during various welding processes was carried out. Welding procedures used were TIG and MIG with different additional materials and different process parameters. The same basic material, AlSi alloy, was used in all of welding procedures. Gases that were released during the welding processes were captured by the GilAir Plus device, in which a membrane filter was installed, which serves for filtration and capture of dust particles. The air flow rate responsible for collecting dust particles was 0.5 l/min, which is also the maximum value in terms of filter permeability. The sampling time for all procedures took place in a time interval of one minute and a room temperature of 25 °C. The chemical analysis of dust particles was carried out with an scanning electron microscope equipped with an EDS analyzer. Particle classification was performed according to the ISO 13322 standard according to particle size, geometry and number.

Pri delu zobnih tehnikov v zobotehničnih laboratorijih nastajajo prahovi oziroma delci prahov, ki v večini primerov negativno vplivajo na zdravje izpostavljenih. Njihov vpliv je odvisen od koncentracije, sestave in geometrije delcev prahu ter trajanja izpostavljenosti. Koncentracija, sestava in geometrija delcev prahu so v prvi vrsti odvisne od materiala in postopka oziroma izdelovalnega procesa. Izvedena je podrobna predstavitev in analiza veljavnih standardov skupine ISO 13322, s posebnim poudarkom na standardu ISO 13322-1. V okviru diplomskega dela smo izvedli vzorčenja (meritve emisij) delcev prahu pri postopkih izdelave različnih zobnih nadomestkov z osebnim merilnikom za vzorčenje. Eksperimentalna analiza sestave in geometrije delcev prahu je izvedena v skladu s standardom ISO 13322-1 z uporabo vrstičnega elektronskega mikroskopa na poljsko emisijo Thermo Scientific Quattro S. During the work of dental tehnicians in dental laboratories, dust particles are formed, wich in most cases have a negative effect on the health of the exposed. Their impact depends on the concentraction, composition, geometry of dust particles and the duration of exposure. The concentration, composition and geometry of dust particles primarily depend on the material and manufacturing process. A detailed presentation and analysis of the current standards of the ISO 13322 group was performed, with special emphasis on the ISO 13322-1 standard. As part of the diploma work, we performed sampling (measurement of emissions) of dust particles in the process of making various dental protheses using a personal sampler. Experimental analysis oft he composition and geometry of the dust particles was performed in accordance with ISO 13322-1 using a field electron microscope on field emission Thermo Scientific Quattro S.

Pri delu v dentalnih laboratorijih nastajajo prahovi oziroma delci prahov, ki v večini primerov negativno vplivajo na zdravje izpostavljenih. Stopnja tveganja za zdravje je odvisna od sestave in koncentracije delcev prahu ter trajanja izpostavljenosti. Prahovi so trdni delci, velikosti manjših od 1 µm do 100 µm, ki so lahko prisotni v zraku. Izpostavljenost inhalativnim frakcijam prahu, katerih najmanjši delci se ne ustavijo v nosu ali dihalnih poteh, ampak prodrejo tudi v najmanjše alveole, lahko vodi v tveganje za razvoj poklicnih pljučnih bolezni pri zaposlenih v dentalnem laboratoriju. V diplomskem delu so predstavljeni postopki in materiali, s katerimi se ukvarjajo dentalni tehniki, osnovne značilnosti prahov ter metode analize slike, med drugim so predstavljeni tudi Feretov premer delca, ekvivalentni premer delca, konveksnost, elongacija, krožnost in oblike delcev. V okviru eksperimentalnega dela sta bili opravljeni vzorčenji delcev prahu pri postopkih izdelave različnih dentalnih nadomestkov z osebnim merilnikom za vzorčenje EGO PLUS TT. Prvo vzorčenje je potekalo z uporabo ventilacijske naprave, drugo pa brez uporabe ventilacijske naprave. Analiza sestave delcev prahu je bila izvedena v skladu s standardom ISO 13322-1:2014 z vrstičnim elektronskim mikroskopom na poljsko emisijo Thermo Fischer Scientific Quattro S. Analiza je pokazala, da so bili najpogostejši delci prahu zlitinskega izvora, katerih večina je oksidirala. When working in dental laboratories, dust particles are formed, which in most cases have a negative effect on the health of those who are exposed to them. The degree of health risk depends on the composition and concentration of the dust particles and the duration of exposure. Dust consists of solid particles smaller than 1 μm to 100 μm in size that may be present in the air. Exposure to inhaled dust fractions, the smallest particles of which do not stop in the nose or airways but penetrate even the smallest alveoli, can lead to a risk of developing occupational pulmonary diseases. This diploma thesis presents the procedures and materials used by dental technicians, basic characteristics of powders and methods of image analysis, including Feret diameter, circle equivalent diameter, convexity, elongation, circularity and particle shapes. As part of the experimental work, sampling of dust particles was performed between processes of manufacturing various dental replacements with a personal sampler EGO PLUS TT. The first sampling was performed using a ventilation device and the second without the use of a ventilation device. The analysis of the dust particle composition was performed according to ISO 13322-1: 2014 with a field emission gun scanning electron microscope Thermo Fischer Scientific Quattro S. The analysis has shown that the most common dust particles were of alloy origin, most of which oxidized.

Kakovost življenja na nekem območju je močno odvisna od stopnje onesnaženja, saj medicinska stroka nesporno ugotavlja korelacijo med kvaliteto zunanjega zraka in zdravstvenem stanjem prebivalcev. Območje Zasavja je bilo skozi zgodovino pod močnim vplivom industrije, ki je prinesla na eni strani gospodarski razvoj, na drugi pa negativne vplive na okolje. S pomočjo elementov evalvacijske analize smo preučevali učinke javnih politik, ki so bile sprejete z namenom izboljševanja kakovosti zunanjega zraka. To smo storili s pomočjo preučevanja dokumentov, sprejetih na evropski, državni in lokalni ravni, poročil stroke, intervjujev z deležniki in meritev vsebnosti onesnažil v zraku. Danes je industrijskih obratov manj, zato je pa večja odgovornost na strani prebivalcev samih, kajti večina emisij prašnih delcev prihaja ravno iz prometa in individualnih kurišč. Iz tega razloga so Trbovlje, Zagorje ob Savi in Hrastnik sprejele načrte za izboljšanje stanja v prometu, ter vrsto ukrepov na področju bolj učinkovite rabe energije in oskrbovanja uporabnikov z ogrevanjem. Učinki se kažejo v izboljšanju količine onesnažil v zraku, vendar so vrednosti še vedno nad mejnimi. Poleg tega pa je dolgoročna izpostavljenost onesnaženemu zraku povzročila nadpovprečno obolelost prebivalcev za določenimi boleznimi. Stanje na področju kakovosti zunanjega zraka je boljše, kot je bilo v začetku preučevanega obdobja, vendar še vedno ni zadovoljivo in kliče po nadaljnjem ukrepanju. Medical society is indisputably proving the correlation between the quality of the air we breathe and the health state of the population, therefore the quality of life in an area is significantly affected by air pollution levels. Throughout history, the Zasavje region has been heavily influenced by heavy industry, which has contributed to the economic development on one side and brought negative environmental impacts on the other. Using the elements of the evaluation analysis, we examined the effects of public policies adopted to improve ambient air quality. We have done this by examining documents adopted at European, national and local level, expert reports, stakeholder interviews and air pollutant measurements. Today, the heavy industry is mostly gone and so there is more responsibility on the residents themselves, because most of the particulate emissions come from traffic and individual heating systems. For this reason, Trbovlje, Zagorje ob Savi and Hrastnik have adopted plans for improving the traffic situation, as well as a series of measures in the field of more efficient use of energy and supply to customers with heating. The effects can be seen in the overall quantity of pollutants in the air however, it is still above the required limit. In addition, long-term exposure to polluted air has led to an above-average population incidence of certain diseases. Ambient air quality is better than it was at the beginning of the studied period but is still unsatisfactory and calls for further action.

Cilj diplomske naloge je bila analiza in klasifikacija delcev prahu, ki se sproščajo v dimnih plinih pri ročnem obločnem varjenju. Testne meritve so bili izvedene z testno napravo Zambelli EGO TT, ki je namenjena kontroli kakovosti zraka. Postopki varjenja so potekali pri okoliški temperaturi 26 °C in v časovnem razponu ene minute. Kot osnovni material je bilo uporabljeno konstrukcijsko jeklo z uporabo dodajnega materiala v obliki celulozne elektrode. Količina absorbiranega zraka je znašala 3 litre. Izvedena sta bila dva testa: prvi z uporabo ventilacije in drugi brez uporabe ventilacije. Metalografska analiza filtrirnih lističev je bila izvedena z elektronskim mikroskopom z namenom ugotavljanja količine dimnih delcev, njihove sestave in velikosti. Klasifikacija delcev je bila izvedena v skladu s standardom ISO 13322 »Analiza velikosti delcev«. The main idea was to examine and classify dust particles which emerge during manual metal arc welding. The testing measurements were done with Zambelli EGO TT air testing quality device. The measured air temperature was 26 °C and time interval at which welding procedures were done was one minute. Construction steel was used as basic material and cellulose electrode was used as additional material. The quantity of absorbed air through filter was 3 litres. Two test were conducted, the first with the usage of ventilation device, and the second without the usage of ventilation device. Particle analysis was done on electronic microscope with purpose of finding out the quantity, size and geometry of dust particles. The classification of dust particles was done according to the standard of ISO 13322 »Particle size analysis«.

V magistrski nalogi smo obravnavali procesni sistem za nadzor kakovosti zraka v prostoru. Pri tem smo se osredotočili na senzorski merilni sistem, ki omogoča nadzor kakovosti zraka s stališča prašnih delcev in merjenje koncentracije kisika, ogljikovega dioksida, ogljikovega monoksida in dušikovih oksidov. Razvili in izdelali smo procesni sistem za nadzor kakovosti zraka v prostoru, s katerim smo izvedli primerjalne analize v različnih okoljih. Izmerjeni rezultati prikazujejo dejansko, trenutno stanje zraka in onesnaženosti s prašnimi delci v prostoru. V zadnjem delu je prikazana primerjava vseh meritev in smeri možnih nadgradenj aplikacij sistema. In this thesis we discussed the process system for controlling air quality in rooms. In this, we focused on the sensor measuring system, which enables the control of air quality from the point of view of dust particles and the measurement of concentration oxygen, carbon dioxide, carbon monoxide and nitrogen oxides. We developed and produced a process control system for the quality of air in the space, with which we performed comparative analyzes in different environments. The measured results show the actual, current state of the air and the pollution of dust particles in the room. The last section shows a comparison of all measurements and directions of possible system upgrades.

Namen naše raziskave je bil določanje okolju nevarnih organskih spojin adsorbiranih na prašne delce PM10. Vzorce smo odvzeli v skladu s standardom SIST EN 12341:2014. Po gravimetrijskem določanju delcev PM10 smo vzorce uporabili še za določitev kemične sestave in preučitev pomembnih sezonskih razlik v sestavi organskih snovi, ki jih vsebujejo delci PM10. V ta namen smo razvili analizno metodo za določevanje organskih spojin v ekstraktih vzorcev prašnih delcev PM10 s plinsko kromatografijo in masno spektrometrijo. S pomočjo kemometrijskih metod smo določili pomembne sezonske in lokacijske razlike sestave organskih spojin v zraku nad Mariborom. Določali smo sestavo spojin, ki označujejo onesnaženost in ugotavljali, katere spojine so antropogenega izvora. Ugotavljali smo, kako se sestava razlikuje glede na letni čas in odvzemno mesto vzorčenja. PM10 je frakcija respirabilnih prašnih delcev s premerom 10 μm ali manj. Suspendirani delci v zraku so naravnega (gozd, cvetni prah, padavine, neurja, vegetacija, vulkanski pepel...) ali antropogenega izvora (emisije industrije, prometa, sežig fosilnih goriv, biomase, kmetijstvo). Glede na izvor delce razdelimo na primarne in sekundarne. Primarni delci se sproščajo v ozračje direktno. Velik del organskih aerosolov v atmosferi je mogoče pripisati sekundarnim organskim aerosolom (SOA), ki nastajajo pri oksidaciji hlapnih organskih spojin (VOC) z atmosferskimi oksidanti kot so O3, OH• radikali in NO3• radikali. Fotokemični procesi vplivajo na kemično sestavo organskih spojin in njihove fizikalno-kemijske lastnosti kot so hlapnost, higroskopičnost ali kondenzacijsko aktivnost SOA spojin. Zakonsko predpisana 24-urna mejna koncentracija za delce PM10 je 50 μg/m3. Preseganja dnevnih mejnih vrednosti PM10 so praviloma v zimskem letnem času. Povišana raven delcev PM10 je predvsem posledica lokalnih izpustov. Dve tretjini vseh izpustov delcev PM10 v Sloveniji je posledica kurjenja lesa gospodinjstev. Raziskovalno delo zaznave in določanja spojin organskih onesnaževal vključuje 120 standardno odvzetih vzorcev prašnih delcev (standard SIST EN 12341:2014) z uporabo nizko volumskega vzorčevalnika, ter analitsko določevanje s plinsko kromatografijo in masno spektrometrijo (GC/MS). Za določanje polarnih organskih spojin smo uporabili sililiranje kot kemijsko tehniko derivatizacije. Nabor organskih spojin v ekstraktih prašnih delcev PM10 vključuje maščobne kisline, n- in izo-alkane, ftalatne estre, siloksane, sterole, sladkorje, sladkorne alkohole, dikarboksilne kisline, spojine razgradnje lignina in lesnih smol, policiklične organske ogljikovodike, organske dušikove spojine ter produkte sekundarne oksidacije monoterpenskih spojin. S pomočjo kemijske karakterizacije smo določili sezonske in lokacijske razlike merilnih mest. Za proučevanje smo uporabili kemometrijske metode kot so korelacijska analiza, metoda glavnih osi, hierarhično razvrščanje, analiza variance (ANOVA). V toplejših letnih časih prevladujejo na prašnih delcih adsorbirane biogene spojine nad antropogenimi spojinami. Pozimi prevladujejo antropogene organske spojine. Najbolj reprezentativne spojine zimskih vzorcev zraka so: levoglukozan, manozan, spojine ftalatnih estrov, spojine razgradnje ligninov in palmitinska kislina. Poleti prevladujejo derivati sladkorjev in sladkornih alkoholov. Na razlike vzorcev glede na sestavo organskih spojin najbolj vplivajo spojine PAHov, 1,3,5-trifenilbenzen, pinonska kislina, DEHP, glicin, nonanojska kislina (C9:0), ter jabolčna kislina in adipinska kislina. V številnih vzorcih je bil prisoten razpotegnjen kromatografski vrh neločene kompleksne mešanice (NKM), ki se razlikuje glede na letni čas in sestavo. Izvor NKM pozimi pripisujemo kurjenju fosilnih goriv ter izpuhov motornih vozil, poleti pa fotooksidacijskim procesom monoterpenov. Do lokacijskih razlik v sestavi organskih spojin adsorbiranih na ekstraktih vzorcev PM10 prihaja zaradi različnih antropogenih in biogenih izpustov, obremenjenosti posamezne The aim of our study was the determination of environmentally hazardous organic compounds adsorbed on dust particles PM10. The samples were taken according to SIST EN 12341: 2014. After the gravimetric determination of PM10 the samples were used for the determination of composition and examination of significant seasonal differences of organic compounds adsorbed on dust particles PM10. For this purpose we developed an analytical method for the determination of organic compounds adsorbed on PM10 by gas chromatography and mass spectrometry. Using chemometric methods, we determined relevant seasonal and location differences in composition of organic compounds in the air above Maribor. We determined the composition of compounds, which indicate contamination, and measured, which compounds are of anthropogenic origin. We investigated how the composition varies depending on the time of year and the sampling location. PM10 is a fraction of respirable dust particles with a diameter of 10 μm or less. Suspended particles in the air are of natural (forests, pollen, rain, thunderstorms, vegetation, volcanic ash ...) or anthropogenic origin (industrial emissions, traffic, combustion of fossil fuels, biomass, agriculture). Depending on the origin of the particles are divided into primary and secondary. Primary particles are emitted directly into the atmosphere. A large portion of the organic aerosol in the atmosphere can be attributed to secondary organic aerosol (SOA), produced in the oxidation of volatile organic compounds (VOC) with atmospheric oxidants such as O3, OH• radicals and NO3• radicals. Photochemical processes affect the chemical composition of organic compounds and their physicochemical properties such as volatility, hygroscopicity or condensation activity of SOA compounds. Legally prescribed 24-hour limit concentration of PM10 is 50 μg/m3. Exceedances of daily PM10 limit values are generally in the winter season. Elevated levels of PM10 are mainly due to local emissions. Two-thirds of all PM10 emissions in Slovenia is the result of wood burning by households. The reaserch work of determination of organic compounds in atmospheric particulate matter includes 120 samples of collected dust particles PM10. Sampled according to SIST EN 12341:2014 reference method, using a low-volume air sampler and the analytical determination by gas chromatography and mass spectrometry (GC/MS). Silylation as derivatisation method was used for the determination of polar organic compounds. The set of organic compounds on the dust particles PM10 include of fatty acids, n-alkanes and iso-alkanes, phthalate esters, siloxanes, different sterols, various sugars and sugar alcohols, compounds of lignin and resin acids, dicarboxylic acids from photochemical reactions, PAHs, organic nitrogen compounds and products from secondary oxidation of monoterpenes were determined. With the chemical characterization we determined seasonal and locational differences of sampling points. For the study we used chemometric methods such as correlation analysis, regression, cluster analysis, analysis of variance (ANOVA). In warmer seasons adsorbed on dust particles biogenic compounds dominate over anthropogenic compounds. In winter anthropogenic compounds dominate. The most representative compounds of winter air samples are levoglucosan, manosan, phthalate esters, decomposition compounds of lignin and palmitic acid. In summer derivatives of sugars and sugar alcohols dominate. The variations of samples according to the composition of organic compounds are mostly influenced by PAHs, 1,3,5- triphenylbenzene, pinonic acid, DEHP, glicine, nonanoic acid, malic acid and adipic acid. In a number of samples was present an elongated chromatographic peak of unresolved complex mixture (UCM), which varied according to the season and composition. Source of UCM in winter are the burning of fossil fuels and exhaust of motor vehicles, while in summer the photoxidation processes of VOC. Locat

Naša družba je prišla do razpotja in pred nami je težka odločitev o naši prihodnosti. Odločitev zadeva vsakega posameznika in družbo kot celoto. Bomo nadaljevali po poti brezobzirnega izkoriščanja naravnih virov, predvsem uporabe fosilnih goriv kot vira energija ali bomo postali nizkoogljična družba, ki smotrno uporablja naravne vire in načrtuje svojo prihodnost na zelenih virih energije. Biosfera, katere del je tudi človek, je nastajala milijone in milijone let. Med biotskimi in abiotskimi dejavniki se je skozi zemeljsko zgodovino vzpostavilo ravnovesje, ki ga je začel človek z okoljskim in ogljičnim odtisom krhati. Da se je nekaj spremenilo, nas dnevno po svetu opozarjajo številni vremenski ekstremi. Velike količine izpustov toplogrednih plinov, ki jih je s svojim načinom življenja ustvaril človek, so botrovale dvigu povprečne temperature ozračja. Podnebnih sprememb se več ne da ustaviti, lahko pa se jih upočasni. Potrebne bodo spremembe, v prvi vrsti radikalno zmanjšanje porabe fosilnih goriv in uporaba obnovljivih ter okolju prijaznih zelenih virov energije. Ob tem se zastavi vprašanje, kako pristopiti do ljudi in jim na ustrezen način predstaviti ta problem ter možne rešitve. V načrtovanje in izvedbo prehoda v nizkoogljično družbo se bomo morali aktivno vključiti vsi. Magistrska naloga predstavlja vpogled v energetsko dogajanje male podeželske občine in preverja odnos njenih občanov do problema onesnaževanja zraka s toplogrednimi plini in prašnimi delci ter prehoda na zelene vire energije. Dolgoročno se bomo morali hote ali nehote vsi odreči energetsko potratnemu načinu življenja oziroma postati nizkoogljična družba, da bodo naši potomci imeli možnost preživetja v takšnem novem in močno spremenjenem okolju. Our society has come to a crossroads facing us with a difficult decision regarding our future. The decision concerns every individual and the society as a whole. Should we pursue the road of careless exploitation of natural resources, especially the use of fossil fuels as a source of energy, or should we become a low-carbon society that rationally uses natural resources and plans its future on renewable energy sources. The biosphere, including the humans who also make part of it, has been created for millions of years. During the earth's history, a balance has been established between the biotic and abiotic factors, that however, has been disturbed by the humans with their impact of environmental and carbon footprint. That something has changed, we are warned every day with a number of weather extremes around the world. The large quantities of greenhouse gas emissions generated by our modern way of living have contributed to an increase in the average temperature of the atmosphere. The climate change process can not be stopped, but it can be slowed down. Dramatic changes are needed, primarily radical reduction of fossil fuel consumption and the use of renewable and environmentally friendly renewable energy sources. This raises the question of how to approach people and present them, in an appropriate way, this problem and possible solutions. All of us have to actively get involved in the planning and implementing of the transition to a low-carbon society. The master thesis presents an insight into the energy performance of a small rural municipality and analyses the attitude of its residents to the problem of air pollution with greenhouse gases and dust particles in view of the transition to renewable sources of energy. In the long term, we will all have to give up, whether desired or not, the energy-wasting way of life and become a low-carbon society so that our descendants will have the opportunity of survival in a new and dramatically changed environment.

V skupnem diplomskem delu sem združil znanost biologije in tehnike z obravnavanjem razvoja avtomobilizma in njegovega vpliva na okolje. Pri vplivih transporta na okolje sem se osredotočil predvsem na onesnaževanje ozračja in ekološke posledice, kot so, akumulacija težkih kovin, onesnaževanje s prašnimi delci, soljo, hrupom in svetlobo, uničevanje habitatov in fragmentacija krajine, vnos in razširjanje škodljivih vrst, povozi živali, nastanek novega habitata in soljenje kot priložnost za slanoljubne rastline. Opredelil sem tudi sodobne smernice razvoja avtomobilizma in trend zmanjševanja okoljskega odtisa. V zaključnem delu sem spoznanja prenesel še v šolsko prakso v sklopu tehniškega dne za 8. razrede osnovne šole. I have connected sciences biology and engineering in the diploma thesis with research of automobilism development and its influence on environment. I have focused on air pollution and ecological consequences with influences of transport to environment, such as: accumulation of heavy metals, pollution of dust particles, salt, noise, and light, destruction of habitat and fragmentation of landscape, input and spreading of harmful species, drive over animals, beginning of new habitat and salting as an opportunity for halophytes. I have defined modern guidelines of the automobilism development and trend of lowering carbon footprint. I have also transferred the findings into the technical day school practice for the 8th grade pupils in primary schools.

Celjska kotlina se je po izgradnji Južne železnice začela intenzivno gospodarsko razvijati, glavno vejo gospodarskega razvoja je predstavljala industrija. Predstavili smo večja industrijska podjetja in razložili njihov vpliv na okolje. Logistični procesi, ki se odvijajo v takšnih podjetjih, so pustili precejšnje posledice v Celjski kotlini. Izpostavili smo proizvodne procese ter njihov vpliv na zrak, tla in vodotoke. Poiskali smo informacije o stanju vodotokov v sedemdesetih in osemdesetih letih, predstavili delovanje in infrastrukturo čistilnih naprav ter analizirali izboljšano stanje vodotokov po izgradnji čistilnih naprav. Analizirali smo onesnaženost zraka, preverili obstoječo zakonsko podlago in podali predloge omejevanja emisij žveplovega dioksida in prašnih delcev. Na tem področju smo izpostavili podjetje »Cinkarna, Metalurško-kemična Industrija Celje, d.d.«, ki predstavlja dober primer prestrukturiranja podjetja iz okoljsko neodgovornega v okolju prijaznejše podjetje z jasnimi zavezami za izboljšanje stanja. Raziskali smo zakaj je prišlo do močne degradacije tal na celotnem območju Celjske kotline, izpostavili najbolj kritično območje stare Cinkarne, preverili kaj se na tem področju trenutno dogaja ter podali različne možnosti remediacije s težkimi kovinami kontaminiranih tal. After the construction of Southern railway, intensive economic development began in the Celje basin and the main branch of economic development was industry. Larger industrial undertakings and their effect on the environment are presented in the thesis. The logistics processes taking place in these industrial undertakings have left considerable consequences in the Celje basin. Industrial processes are pointed out, as well as the consequence of these processes on the atmosphere, soil and watercourses. Information on the state of watercourses in the 70's and 80's are given, the function and infrastructure of wastewater treatment plants are presented and the improved state of watercourses after the building of wastewater treatment plants is analyzed.. Air pollution is analyzed, the current legal basis of this field is inspected and suggestions for limitation of sulphur dioxiode and dust particle emissions are given. Concerning this topic, the company "Cinkarna, Metalurško-kemična Industrija Celje, d.d" is exposed and presented as a good example of a socially responsible company. The causes of severe soil degradation in the whole area of the Celje basin are examined, the most critical area of the former Cinkarna industry is exposed, the current happenings in this field are researched and different possibilities for remediation of the soil, contaminated with heavy metals are given.

Upepeljevanje pokojnikov se lahko po tehniški plati primerja z nekaterimi drugimi procesi kot je sežig odpadkov, vendar moramo tudi zaradi pietetnih in zgodovinskih razlogov upepeljevanje obravnavati kot poseben proces. Eden od pomembnih vidikov delovanja upepeljevalnic je tudi okoljski, saj so upepeljevalnice potencialni onesnaževalec okolja, pri čemer so za okolje najnevarnejši živo srebro in dioksini/furani zaradi toksičnosti ter bioakumulacije v živih bitjih. Zaradi okoljskih in drugih razlogov prihaja do nasprotovanja javnosti za postavitev novih upepeljevalnic, kar se je zgodilo tudi v Sloveniji. S tehniškimi in drugimi ukrepi lahko emisije in druge vplive na okolje iz upepeljevalnic zelo znižamo, s tem pa postane upepeljevanje z okoljskega, tehniškega, ekonomskega, pietetnega in urbanističnega vidika najprimernejši način slovesa od pokojnikov. In terms of technical aspects, cremation of corpses can be compared to waste incinerating processes, but due to the reverence for the dead and for historical reasons, cremation needs to be treated as a special process. One of the most important aspects of crematoria process is the environmental aspect. The fact is that crematoria are potential environmental emitters where mercury and dioxins/furans present the most serious hazard because of their toxicity and possibility of bioaccumulation in living creatures. Due to environmental and other reasons sometimes building new crematoria faces public resistance, which happened in Slovenia as well. Emissions and other influences on the environment can be limited using technical and other measures. In that case, cremation becomes from various point of views (environmental, technical, economic, reverence for the dead and urban) the most appropriate way to treat corpses after death.