title: Transfluthrin indoor air concentration and inhalation exposure during application of electric vaporizers.
abstract: Different household insecticide applications via two electric vaporizers emitting transfluthrin were realized in a full-scale experimental room under controlled air exchange rate conditions. On-line high-time resolved measurements of the gas-phase concentrations of the active substance during and immediately after the spreading periods were performed with a High Sensitivity Proton-Transfer-Reaction Mass Spectrometer (HS-PTR-MS). Experimental and modelled data from the ConsExpo 4.0 software were also compared to evaluate the sources of differences. Different application scenarios were also compared. Averaged inhaled concentrations over 1h, 1week, and 5months were estimated to be 8.3, 1.8, and 1.8μg.m(-3), respectively. Corresponding margins of exposures range from 1000 to 10,000, claiming for the absence of effect. Dermal and dust ingestion pathways, although roughly estimated, seems being non-negligible. This claims for a more in-depth integrated risk assessment.
authors: Aix Marseille Université, CNRS, LCE, FRE 3416, 13331 Marseille, France.
authors: Aude
authors: A
authors: Vesin
authors: Philippe
authors: P
authors: Glorennec
authors: Barbara
authors: B
authors: Le Bot
authors: Henri
authors: H
authors: Wortham
authors: Nathalie
authors: N
authors: Bonvallot
authors: Etienne
authors: E
authors: Quivet
mesh_terms: D000388:Air / Q000032:analysis; D016902:Air Pollution, Indoor / Q000032:analysis*; D003521:Cyclopropanes / Q000032:analysis*; D005464:Fluorobenzenes / Q000032:analysis*; D005740:Gases / Q000032:analysis; D019570:Inhalation Exposure / Q000032:analysis*; D007306:Insecticides; D008956:Models, Chemical; D009330:Nebulizers and Vaporizers
chemical_list: D003521:Cyclopropanes; D005464:Fluorobenzenes; D005740:Gases; D007306:Insecticides; C560613:transfluthrin
keywords: Exposure; HS-PTR-MS; Indoor; Pesticide; Pyrethroid