نتایج جستجو برای: methyl ethyl ketone
تعداد نتایج: 145323 فیلتر نتایج به سال:
Background and aims In the most chemical process industries, workers are exposed to various chemicals and working with these chemicals without considering safety and health considerations can lead to different harmful symptoms. For deciding about control measures and reducing risk to acceptable level , it is necessary to assess the health risk of exposing to harmful chemicals by aid of specif...
Due to injuries of pesticides to natural enemies of pests and pollinator insects, especially honeybees, during the flowering periods, it is essential to protect them. Application of chemical compounds along with the pesticides on the plants could repel the non-target insects from the sprayed areas for sometime and lessen the hazards of pesticides to them. In this study, ten repellent chemicals ...
Hexacarbons are used as solvents and are components of lacquers and glues. Exposure to the hexacarbons occurs in petroleum production and refining industries. Glues and lacquers are widely used in the shoe and cabinet-making industries (Herskowitz et al 1971; Cianchetti et al 1976). Initial reports of occupational exposure to hexacarbons centered on the sandaland shoe-making industries of Japan...
Methyl ethyl ketone (MEK) enters the atmosphere following direct emission from vegetation and anthropogenic activities, as well as being produced by the gas-phase oxidation of volatile organic compounds (VOCs) such as nbutane. This study presents the first overview of ambient MEK measurements at six different locations, characteristic of forested, urban and marine environments. In order to unde...
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