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Assessment report on nitrogen dioxide for developing ambient air quality objectives

Description

Ambient air quality objectives are established as part of the Alberta air quality management system. The purpose of this assessment report was to provide a review of scientific and technical... More ≫

Description

Ambient air quality objectives are established as part of the Alberta air quality management system. The purpose of this assessment report was to provide a review of scientific and technical information to assist in evaluating the basis and background for an ambient air quality objective for nitrogen dioxide. Nitrogen dioxide is an irritating gas with an acrid, pungent odour. It is corrosive, highly oxidizing and non-combustible. It can be released directly to the atmosphere but is often produced by the conversion of nitric oxide released from combustion processes. In the presence of sunlight, nitrogen dioxide can lead to the formation of ozone, nitric acid and nitrate-containing respirable particles.

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Assessment report on benzene for developing ambient air quality objectives

Description

Ambient air quality objectives are established as part of the Alberta air quality management system. The purpose of this assessment report was to provide a review of scientific and technical... More ≫

Description

Ambient air quality objectives are established as part of the Alberta air quality management system. The purpose of this assessment report was to provide a review of scientific and technical information to assist in evaluating the basis and background for an ambient air quality objective for benzene. Benzene is a clear, colourless, volatile, highly flammable liquid with a sweet aromatic odour. It is primarily derived from petroleum and used in the manufacturing of chemical intermediates and as an additive in gasoline.

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Assessment report on hydrogen fluoride for developing ambient air quality objectives

Description

Ambient air quality objectives are established as part of the Alberta air quality management system. The purpose of this assessment report was to provide a review of scientific and technical... More ≫

Description

Ambient air quality objectives are established as part of the Alberta air quality management system. The purpose of this assessment report was to provide a review of scientific and technical information to assist in evaluating the basis and background for an ambient air quality objective for hydrogen fluoride. Hydrogen fluoride is a highly water soluble gas with a strong, irritating odour. It is used in many industrial processes, including the manufacture of fluorocarbons and the production of aluminum fluorides and synthetic cryolite (aluminum industry). Hydrogen fluoride is also used in the fluoridation of drinking water.

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Assessment report on formaldehyde for developing ambient air quality objectives

Description

Ambient air quality objectives are established as part of the Alberta air quality management system. The purpose of this assessment report was to provide a review of scientific and technical... More ≫

Description

Ambient air quality objectives are established as part of the Alberta air quality management system. The purpose of this assessment report was to provide a review of scientific and technical information to assist in evaluating the basis and background for an ambient air quality objective for formaldehyde. Formaldehyde is a colorless, flammable gas with a pungent, suffocating odour. It is considered one of the most widely used industrial and research chemicals, used primarily in the manufacturing of resins, fertilizers and other compounds.

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Assessment report on nickel for developing ambient air quality objectives

Description

Ambient air quality objectives are established as part of the Alberta air quality management system. The purpose of this assessment report was to provide a review of scientific and technical... More ≫

Description

Ambient air quality objectives are established as part of the Alberta air quality management system. The purpose of this assessment report was to provide a review of scientific and technical information to assist in evaluating the basis and background for an ambient air quality objective for nickel. Metallic nickel is not commonly found in nature but nickel is found in many minerals. Nickel is used primarily in the manufacturing of stainless steel and other alloys due to its favourable properties of hardness, corrosion-resistance, heat-resistance and strength.

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Assessment report on 2-ethylhexanol for developing ambient air quality objectives

Description

Ambient air quality objectives are established as part of the Alberta air quality management system. The purpose of this assessment report was to provide a review of scientific and technical... More ≫

Description

Ambient air quality objectives are established as part of the Alberta air quality management system. The purpose of this assessment report was to provide a review of scientific and technical information to assist in evaluating the basis and background for an ambient air quality objective for 2-Ethylhexanol . 2-Ethylhexanol is a clear, colourless liquid with an odour described as sweet, floral, intense, and unpleasant. It occurs naturally in food and is also added as flavouring to foods. This compound is used predominately in the production of plasticizers for PVC resins, hexyl esters, and arylates. It is also used in textiles and as a solvent and wetting agent.

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Assessment report on manganese for developing an ambient air quality objectives

Description

Ambient air quality objectives are established as part of the Alberta air quality management system. The purpose of this assessment report was to provide a review of scientific and technical... More ≫

Description

Ambient air quality objectives are established as part of the Alberta air quality management system. The purpose of this assessment report was to provide a review of scientific and technical information to assist in evaluating the basis and background for an ambient air quality objective for manganese. Manganese may be found in over 100 minerals, primarily in the form of oxides, silicates and carbonates. It is also found in coal and crude oil. Manganese is used primarily in making steels and nonferrous alloys. Other uses for manganese and manganese compounds include in the manufacturing of batteries, fertilizers, pesticides and ceramics, as a gasoline additive and as a dietary supplement. Manganese compounds are also used in animal feeds, pharmaceutical products, and wood preservatives and as catalysts.

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Assessment report on acetone for developing ambient air quality objectives

Description

Ambient air quality objectives are established as part of the Alberta air quality management system. The purpose of this assessment report was to provide a review of scientific and technical... More ≫

Description

Ambient air quality objectives are established as part of the Alberta air quality management system. The purpose of this assessment report was to provide a review of scientific and technical information to assist in evaluating the basis and background for an ambient air quality objective for acetone. Acetone is a clear, colourless liquid, which readily evaporates at ambient temperatures.

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Assessment report on pentachlorophenol for developing ambient air quality objectives

Description

Ambient air quality objectives are established as part of the Alberta air quality management system. The purpose of this assessment report was to provide a review of scientific and technical... More ≫

Description

Ambient air quality objectives are established as part of the Alberta air quality management system. The purpose of this assessment report was to provide a review of scientific and technical information to assist in evaluating the basis and background for an ambient air quality objective for pentachlorophenol. Pentachlorophenol is a white, needle-like crystal solid that does not occur naturally. Pentachlorophenol is no longer manufactured in Canada, but it is imported for use primarily as a wood preservative. It is also used as a pesticide, herbicide, insecticide, fungicide, biocide, bactericide, and algaecide, and as additives to other products such as adhesives and drilling muds.

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Assessment report on acrylonitrile for developing an ambient air quality guideline

Description

Acrylonitrile is a volatile and flammable gas. It does not occur naturally and there is no evidence that chemical reactions may lead to its formation in the atmosphere. It is used primarily in the... More ≫

Description

Acrylonitrile is a volatile and flammable gas. It does not occur naturally and there is no evidence that chemical reactions may lead to its formation in the atmosphere. It is used primarily in the fabrication of acrylic fiber, resins, rubbers, and elastomers. The major industrial sectors contributing to acrylonitrile emissions in Canada, in order of importance, are the chemical and chemical products sector, transportation equipment industries and plastic product industries. The National Pollutant Release Inventory reports that there are no major emissions of acrylonitrile from industrial facilities in Alberta. No published literature could be found on the direct effects (through the atmosphere) of acrylonitrile exposure to terrestrial plants. The primary route of acrylonitrile exposure for the general public and animals would be through inhalation. However, it is unlikely that significant exposure to acrylonitrile would occur in the absence of an industrial source or hazardous waste...

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