Search

Despite the effectiveness of male condoms, many Female Sex Workers (FSWs) report using condoms infrequently with multiple clients during sexual activity. As such, inconsistent condom use by FSWs is a public health concern as it can increase STI and HIV transmission. This systematic review synthesized extant evidence regarding barriers to condom use experienced by FSWs in the U.S and U.S. – Mexico border towns. The search was conducted through PubMed, CINAL, Cochrane, Medline, and PsychInfo. Studies were included if: they were conducted in the U.S. or U.S. – Mexico borders, their target population was FSWs, they examined condom use barriers experienced by FSWs, and they were published in English between 2011 and February 2021. Condom use barriers among FSWs were reported in all the articles including alcohol consumption and drug use before sex, venue stability, socio-economic status vulnerability, violence and gendered power dynamics, trust of regular clients, and age. The review findings indicate the need to develop interventions promoting condom use for both FSWs and their clients, as well as alternative interventions for HIV prevention such as pre-exposure prophylaxis (PrEP). [ABSTRACT FROM AUTHOR]

Metal(loid)s are contaminants of concern emitted as particulate matter (PM) from several pollution sources. The objective was to characterize potential exposure from local airborne metal(loid)s in a community in proximity to mine tailings. Air samples were collected weekly at five sites around the municipal mine tailings using two Hi-volume samplers for simultaneously collecting PM10 and PM2.5. Total suspended particulates (TSP), concentrations, speciation, and bioaccessibility of metal(loid)s were quantified. The size and form of particles were determined by scanning electron microscopy. The concentration of TSP (μg m−3) in the airborne samples ranged from 21.2 to 64.6 for PM2.5 and 23.6 to 80.1 for PM10. The profiles of analyzed quasi-total metal(loid) concentration from all sampling sites were similar between these aerosols PM sizes except at site 2 for Cd, at site 3 for Cu, and site 4 for Zn. The order of quasi-total metal(loid) concentration, in the airborne samples for both PM sizes, was As > Zn > Fe > Pb > Cu > Mn > Cd. As speciation included As-sulfite, As(III)-O, and As(V)-O with less concentration of As(III)-O in both PM sizes. Bioaccessible metal(loid) concentrations were very high and represented a great percentage from the quasi-total airborne concentrations, for instance, 10% and 37% for Pb and 8% and 6% for As in pulmonary and gastric bioaccessible concentrations, respectively. Knowing the toxic effects of these pollutants, there is an urgent need to establish environmental regulation of bioaccessible pollutant concentrations from PM dislodged from uncovered metal(loid) mine tailings affecting not only nearby human populations but also possible long-distance ecosystem transport. [ABSTRACT FROM AUTHOR]