Today, large chambers reduce outdoor contamination from such materials as uranium and beryllium, a toxic metal that causes lung diseases.
Another investigation, the Multiple Air Toxics Exposure Study III MATESS), evaluated outdoor contamination in California's South Coast Basin.
We also assumed that by day 7, outdoor contamination would have subsided to the point where it did not affect indoor spore concentrations.
Some specific examples of the environmental challenges facing China include indoor and outdoor air pollution; contamination of land from use of water that contains industrial waste, untreated human and animal sewage, and excessive use of fertilizers and pesticides; deforestation; loss of agricultural land; and sustainability.
Collaborative analyses with data from several birth cohorts have already been performed successfully for outdoor air pollution, water contamination, allergens, biological contaminants, molds, POPs and SHS.
Collaborative analyses with data from several birth cohorts have been performed successfully for outdoor air pollution, water contamination, allergens, biological contaminants, molds, POPs and tobacco smoke exposure.
The focus with regard to exposure was on outdoor air pollution, water contamination, allergens and biological organisms, metals, pesticides, smoking and second hand tobacco smoke (SHS), persistent organic pollutants (POPs), noise, radiation, and occupational exposures.
The evaluation was divided in 11 exposure groups: outdoor air pollution, water contamination, allergens and microbial agents, metals, pesticides (including persistent pesticides), POPs, other chemical pollutants (e.g. phthalates and phenols), smoking and second hand tobacco smoke (SHS), noise, radiation and occupational exposures.
Exposure assessment: air pollution (outdoor and indoor), water contamination, allergens and biological organisms, metals, pesticides, radiations (ionizing, ultraviolet, and nonionizing), tobacco smoke (active and passive), noise, persistent organic pollutants, occupation (maternal and paternal), and other chemical compounds.
Algae for commercial use is typically cultivated in large outdoor ponds, where contamination by microbes and variations in sunlight and temperature can reduce the quality and quantity of the plants, the scientists said.
Some exceptions include studies in which a standardized exposure assessment was part of a collaborative effort (e.g. TRAPCA (outdoor air pollution [ 21]), ESCAPE (outdoor air pollution [ 22, 23, 34]), HIWATE (water contamination [ 24]) AIRALLERG (allergens, biological contaminants and indoor air pollution [ 25, 26]), and HITEA (indoor biological agents, http://www.hitea.eu/).hitea.eu/
