Toxic substances

The unprotected exploration of a local environment by a human is limited by a number of factors. One of these factors is exposure to chemical contaminants. The following is a list of substances toxic to humans:

Deuterium
Asbestos
Lead
Mercury
Vinyl chloride
Inorganic Arsenic compounds
Inorganic Cadmium compounds
Inorganic Fluoride compounds
Hexavalent Chromium compounds
Oxidic compounds
Sulfidic compounds
Soluble inorganic Nickel compounds
Polycyclic aromatic hydrocarbons
Chlorobiphenyls
Dodecachloropentacyclodecane
Polybrominated biphenyls
Chlorofluorocarbon
Polychlorinated Terphenyls
Bromochlorodifluoromethane
Bromotrifluoromethane
Dibromotetrafluoroethane
Dibenzo-para-dioxin
Dibenzofuran
Polychlorinated dibenzo-para-dioxins
Polychlorinated dibenzofurans
Tetrachloromethane
1,1,1-trichloroethane (methyl chloroform)
Bromofluorocarbons
Hydrobromofluorocarbons
Methyl bromide
Bis(chloromethyl) ether
Chloromethyl ether
Hydrochlorofluorocarbons
Benzene
(4-Chlorophenyl)cyclopropylmethanone,O-[94-nitrophenyl)methyl]oxime
Benzidine
benzidine dihydrochloride
3,3-Dichlorobenzidine
Bis(2-ethylhexyl)phthalate
Creosote waste
1,2-Dichloroethane
Dichloromethane
Hexachlorobenzene
Tetrachloroethylene
Trichloroethylene
Tributyltetradecylphosphonium chloride
Bromochloromethane
Acetaldehyde
1,3-Butadiene
Acrylonitrile
Arolein
Ammonia
Nonylphenol
Inorganic Chloramines
Ethylene oxide
N-Nitrosodimethylamine
Formaldehyde
Ozone
Nitric oxide
Nitrogen dioxide
Sulfur dioxide
Hexachlorobutadiene

Limits for human exposure to contaminants

The following is a list of air contaminants and their exposure limits for humans:
CompoundLimit (mg.m-3)
H2O21.4
NH335
H2Se0.2
Cl23
F20.2
Br20.7
HCN11
HCl7
HBr10
SO213
PH30.4
CO29000
CO55
OF20.1
O30.2
NO29
NF329
CClF30.4
CHCl3240
CHCl2F4200
CH2ClBr1050
CFCl35600
CF2Br2860
C2Cl2F47000