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Commercial and residential use of pesticides is common in El Paso, Texas, especially in agricultural areas. Recently, concerns have arisen about the type of pesticides used by residents because of the ease with which methyl parathion can be obtained from the neighboring border city of Juarez in Chihuahua, Mexico. Survey data were collected regarding residents' perceptions about pesticide safety and use of pesticides, and their preferred source of health information. The authors assessed the number of respondents who were using the illegal pesticide methyl parathion, known locally as polvo de avion (airplane dust) as well as their beliefs concerning the safety and efficacy of pesticides. The study found that 88.7 percent (133 of 150) used some type of pesticide, and of these, 9.8 percent (13 of 133) reported using methyl parathion. Biological/environmental testing would be useful to assess use of methyl parathion and to determine the types of pesticides used by local farmers. [ABSTRACT FROM AUTHOR]