Select laboratory network Air and indoor environment 35 (Eco)toxicology 73 Human biomonitoring 101 Water 42 Air and indoor environment 35 Filter Reset filters Type of laboratory PARC member 15 (-) External laboratory 11 Air environment Indoor air 9 (-) Outdoor air 11 Matrix Particle phase 10 Gas phase 9 Substance group Acrylamide 1 Ammonia 2 Arsenic (As) in PM10 8 Arsenic (As) in PM2.5 4 Benzene 6 Benzo(a)pyrene in PM10 7 Bisphenols 1 Black carbon 3 Cadmium (Cd) in PM10 8 Cadmium (Cd) in PM2.5 4 Carbon dioxide 5 Carbon monoxide 4 Disinfection by-products 1 Flame retardants 1 Formaldehyde 2 Halogenated anaesthetics 1 Lead (Pb) in PM10 8 Lead (Pb) in PM2.5 4 Mercury 3 Metals and trace elements 6 Nickel (Ni) in PM10 8 Nickel (Ni) in PM2.5 4 Nitrogen dioxide 5 Nitrogen oxide 4 Nitrosamines 1 Organic and elemental carbon 3 Organophosphate ester plasticizers (OPEs) 2 Ozone 5 Particles (PM10) 7 Particles (PM2.5) 6 Particles (total) 2 Per- and polyfluoroalkyl substances (PFAS) 2 Pesticides-organochlorines 2 Pesticides-organophosphates 1 Phenols 3 Phthalates 3 Polychlorinated biphenyls (PCBs) 1 Polycyclic aromatic hydrocarbons (PAHs) 6 Radon 1 Siloxanes 2 Sugars, sugar alcohols, tetrols 1 Sulfur dioxide 4 UV filters-benzophenones 1 Volatile and semi-volatile organic compounds (VOCs and SVOCs) 5 Water soluble ions 5 Other chemicals 5