virus (1) test (1) échantillonnage (1) risque (1) plan (1) plomb (1) chromatographie en phase gazeuse (1) exposition (1) air (1) comparaison (1) chloration (1) méthode (1) Comparison (1) Children (1) By-products (1) Methods (1) Bromodichloromethane (1) Waste products (1) Tubes (1) Trihalomethanes (1) Swimming pools (1) Swimming (1) Stainless steel (1) Sampling (1) Risk (1) Poor (1) Persons (1) Modeling (1) Mass spectrometry (1) Human beings (1)