RELATIONSHIP AMONG PERSONAL, INDOOR AND OUTDOOR FINE PARTICLE CONCENTRATIONS FOR INDIVIDUALS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE LIVING IN THREE AREAS OF MEXICO CITY

摘要

Our study characterized indoor and outdoor exposure to PM_(10) and PM_(2.5) in 39 participants with varying degrees of chronic obstructive pulmonary disease (COPD) from the National Institute of Respiratory Diseases in Mexico. Participants were selected based on the area of residence: from the southeast, downtown and southwest areas of the Mexico City Metropolitan Area, and were followed from February through November 2000. Mini-volt samplers were used to measure indoor and outdoor levels of PM_(10) and PM_(2.5), and personal PM_(2.5) monitoring devices were also used. The highest concentrations of particulates were registered during winter, maximum PM_(10), PM_(2.5) and personal PM_(2.5) levels were 180.6,160.5, and 126.8 μg /m~3, respectively. The highest correlation observed for the study variables, was between personal PM_(2.5) and home indoor PM_(2.5) levels. On average, the southeast area registered the highest levels of PM_(10) and PM_(2.5).