This work demonstrated the need for very low limits on exposure to airborne crystalline silica because of the high risk of disease from even relatively brief exposures to high airborne concentrations.
32.
Crystalline silica exposure studies indicate that the generation of oxidants and nitric oxide, which play an important role in the initiation of silicosis, has been shown to cause pulmonary inflammation in rats.
33.
The respirable crystalline silica are particles less than 10 microns ( micrometers ), which are small enough to enter the part of the lungs were oxygen and carbon dioxide gases are exchanged.
34.
According to NIOSH and OSHA, a combination of engineering controls, protective personal equipment, safety education, alternative proppant, and work site safety practices are the key to protecting workers from respirable crystalline silica exposure.
35.
A study by National Institute for Occupational Safety and Health concluded that an inhalation health hazard existed for workers exposed to crystalline silica ( sand dust ) at the evaluated hydraulic fracturing sites.
36.
When fine particles of crystalline silica dust deposited in the lungs, macrophages that ingest the dust particles will set off an inflammation response by releasing tumor necrosis factors, interleukin-1, leukotriene B4 and other cytokines.
37.
The occupational exposure limits for crystalline silica continue to be a major international concern and from its previous research IOM has been able to define an exposure-response relationship for crystalline silica with unusual precision.
38.
The occupational exposure limits for crystalline silica continue to be a major international concern and from its previous research IOM has been able to define an exposure-response relationship for crystalline silica with unusual precision.
39.
"' Silicosis "'is a form of occupational lung disease caused by inhalation of crystalline silica dust, and is marked by inflammation and scarring in the form of nodular lesions in the upper lobes of the lungs.
40.
In the 1930s, long-term occupational exposure among workers in the cristobalite D . E . industry who were exposed to high levels of airborne crystalline silica over decades were found to have an increased risk of silicosis.
How to say crystalline silica in Hindi and what is the meaning of crystalline silica in Hindi? crystalline silica Hindi meaning, translation, pronunciation, synonyms and example sentences are provided by Hindlish.com.
