[Concentration of biocides in an indoor setting exemplified by pyrethroides]
Walker, G; Keller, R; Beckert, J; Butte, W
| HERO ID | 76242 |
|---|---|
| In Press | No |
| Year | 1994 |
| Title | [Concentration of biocides in an indoor setting exemplified by pyrethroides] |
| Authors | Walker, G; Keller, R; Beckert, J; Butte, W |
| Journal | International Journal of Hygiene and Environmental Health |
| Volume | 195 |
| Page Numbers | 450-456 |
| Abstract | Pyrethroides are an analogous substance group to one of the oldest known, naturally occuring insecticides pyrethrum and have replaced a number of pesticides such as Lindan, DDT and PCP on the market. Biocides are more persistent indoors than in nature, which could lead to permanent health hazards for the people concerned. Within a few days after application pyrethroides are rarely detected in room air but can be traced for a long time on textiles, furniture and in dust particles (3, 8). The investigation results of approx. 100 analyses from dust and carpet samples show that approx. 1/3 of these samples arc positive for at least one pyrcthroidc and contain a concentration of > 2 mg substance per kg sample. The evaluation of 35 air samples taken from rooms where substances containing pyrethroides had been used at least a month prior to the investigation (the samples were sampled on active charcoal or Chromosorb) showed that pyrethroides could no longer be traced above the detection limit of 0.05-0.1 pg/m3. We therefore think that when investigating a contamination of rooms by biocides it is more advisable to determine pyrcthroides and its synergists in the suspended dust portion and corresponding dust sample rather than analysing air by adsorption to active charcoal, Chromosorb or other carrier materials. From the observed concentrations of biocides one could conclude that in an indoor setting secondary contamination by biocidcs plays a more significant role in the total-body-load than that of air contamination. |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | German |