A personal sampler for inhalable mixed-phase aerosols: modification to an existing sampler and validation test with three pesticides
| Autor: | Derk H. Brouwer, J.C. Ravensberg, W.L.A.M. de Kort, J.J. van Hemmen |
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| Přispěvatelé: | Medisch Biologisch Laboratorium TNO |
| Jazyk: | angličtina |
| Rok vydání: | 1994 |
| Předmět: |
Environmental Engineering
Chlorothalonil Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health Humidity Methomyl General Medicine General Chemistry Pesticide medicine.disease complex mixtures Pollution Aerosol Cartridge chemistry.chemical_compound chemistry Environmental chemistry Dichlorvos medicine Environmental Chemistry Workplace Vapours |
| Zdroj: | Chemosphere, 6, 28, 1135-1146 |
| Popis: | A modified personal air sampler with an inhalable entry efficiency for collecting pesticide aerosols and vapours simultaneously was studied. An XAD 2 cartridge was constructed to fit into the sampler housing and the vapour trapping efficiency of the cartridge was determined for three pesticides using a dynamic U-tube test system. Tests were performed with different amounts of pesticides (1.7 up to 1450 μg) and duration of sampling (30 - 120 min) under various environmental conditions. Trapping efficiency varied from 87% up to 100% for dichlorvos and methomyl, but was slightly lower for chlorothalonil (72% up to 79%). No break-through was observed. The efficiency was not affected by humidity, temperature, pesticide loading and sampling duration. Penetration of solid aerosols through the cartridge at normal sampling flow rate (21.min −1 ) was below 5%. It is concluded that the present sampler enables adequate simultaneous sampling of pesticide aerosols and vapours. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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