Use of semipermeable membrane devices for monitoring pesticides in indoor air.
In this work, 40 pesticides from different categories were analyzed in the air of 20 indoor places that have an intensive use of pesticides. Passive sampling was carried out by using semipermeable membrane devices (SPMDs) deployed for 7 days. SPMDs were analyzed using microwave-assisted extraction and GC/MS. PCB-195 was used as an internal standard. Recoveries ranged between 81 and 108% for many compounds, with RSD values < 11%. Typical LOD values for 7 days of sampling were from 0.1 to 3.1 ng/m. Propamocarb, propoxur, carbosulfan, pirimicarb, metribuzin, metalaxyl, pendimethalin, oxadiazon, phenothrin, and permethrin were detected in 11 sampling sites, with air concentrations in the range from 1 to 921 ng/m. However, the pesticide levels found cannot be considered a serious health problem according to results from other pesticide monitoring studies.
Esteve-Turrillas
Francesc A
FA
University of Valencia, Analytical Chemistry Department, Edifici Jeroni Muñoz, 50 Dr. Moliner, 46100 Burjassot, Valencia, Spain.
Pastor
Agustín
A
De La Guardia
Miguel
M
D000393:Air Pollutants; D016902:Air Pollution, Indoor / Q000032:analysis*; D002138:Calibration; D002623:Chemistry Techniques, Analytical; D004784:Environmental Monitoring / Q000295:instrumentation / Q000379:methods*; D004867:Equipment Design; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D008567:Membranes, Artificial; D008962:Models, Theoretical; D010539:Permeability; D010575:Pesticides / Q000032:analysis*; D015203:Reproducibility of Results; D013997:Time Factors
D000393:Air Pollutants; D008567:Membranes, Artificial; D010575:Pesticides