Laboratory Hazards of Hazardous Substances and pathogens
It is amazing how Biosolids and Reclaimed water neutralizes all hazardous substances and pathogens when they are
used on grazing lands, food crops, parks, school grounds, home lawns and gardens or in drinking water. Aren't people
lucky food and water doesn't come out of a laboratory or industrial facility where all this stuff could kill them ?
Laboratory Safety Incidents
Master index of Occupational Health Guidelines for Chemical Hazards CDC/OSHA
Hazardous Substances Data Bank (HSDB) - Comprehensive, peer-reviewed toxicology data for about 5,000 chemicals.
Biosafety level 1 (BSL-1) is the basic level of protection and is appropriate for agents
that are not known to cause disease in normal, healthy humans.
Biosafety level 2 (BSL-2) is appropriate for handling moderate-risk agents that cause human disease of varying
severity by ingestion or through percutaneous or mucous membrane exposure.
Biosafety level 3 (BSL-3) is appropriate for agents with a known potential for aerosol transmission,
for agents that may cause serious and potentially lethal infections and that are indigenous
or exotic in origin. Exotic agents that pose a high individual risk of life-threatening
disease by infectious aerosols and for which no treatment is available are restricted to
high containment laboratories that meet biosafety level 4 (BSL-4) standards.
The American Biological Safety Association (ABSA)
In many countries, including the United States, infectious agents are categorized in risk groups based on their relative
Risk Group Classification for Infectious Agents
NIOSH Pocket Guide to Chemical Hazards
The National Select Agent Registry Program oversees the activities of possession of biological agents and toxins that
have the potential to pose a severe threat to public, animal or plant health, or to animal or plant products.
OSHA sets enforceable permissible exposure limits (PELs) to protect workers against the health effects of exposure to
hazardous substances. PELs are regulatory limits on the amount or concentration of a substance in the air. They may
also contain a skin designation.
Permissible Exposure Limits (PELs)