Temporal gradient of airborne concentrations
in the aerial spray zone.
measuring the airborne concentrations
of incompletely cured isocyanates in the form of oligomers (aerosol) and isocyanate monomer (vapor) when removing recently cured paint by light abrasion (manual sanding).
of MWCNT-OH and CB were very low during weighing and transferring, with the highest particle number concentrations detected in the 500-nm range (3,065 particles/L for MWCNT-OH and 1,428 particles/L for CB).
Environmental Protection Agency announced it would soon require states to regulate airborne concentrations
The bacteria and fungi colonies were counted, and airborne concentrations
were reported as colony-forming units per cubic meter of air (CFU/[m.
Although there are significant difficulties in measuring airborne concentrations
of most bioaerosols, the health effects associated with exposure to aerosolized bacteria have received less research attention than those associated with exposure to other organic dusts, such as molds and animal allergens.
WS), which develops products for the radiation oncology, interventional cardiology, and orthopedic marketplaces, announced today that it has developed a system that can detect vapor from at least five types of explosives, at airborne concentrations
measured in parts per trillion.
Federal rules prohibit airborne concentrations
of the smallest, most readily inhaled dust particles--those 10 micrometers in diameter or smaller--to exceed an average of 15 [micro]g/[m.
0], increasing airborne concentrations
and cleanup costs.
A new study reveals that as airborne concentrations
of fine dust particles climb, so do three blood factors that increase an individual's heart attack risk.