Class B violations pose a hazardous condition to occupants and Class C violations are considered immediately hazardous.
Chemical mixtures posed a particular challenge because hazardous waste sites often contain complex collections of chemicals, and unexpected interactions can lead to unforeseen forms of toxicity.
Carbon monoxide accumulation posed a greater threat, averaging a maximum of 170.8 ppm during burns and remaining elevated for >30 min, conditions potentially hazardous to fisher neonates.
A prestigious panel of scientists declared yesterday that levels of the most hazardous form of mercury in the environment posed an unacceptable health risk to children born of women who eat fish during pregnancy, and should be reduced.
Last Friday, its concentration of PM2.5 particulate matter (the small airborne particles that enter lungs and pose a health threat) was a "hazardous" 652 at one point compared with an "unhealthy" 180 in Mumbai and Hyderabad.
Deep-well injection is relatively inexpensive and requires little or no pretreatment of the waste, but it poses a danger of leaking hazardous waste and eventually polluting subsurface water supplies.
This posed an opportunity.
It achieves these through an explicit representation of risks posed by hazardous states by means of an ordering of states and a concept called risk band.
The release of hazardous chemicals poses a threat to individuals in the area of a release and to responders who attempt to limit the damage of the release.
