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deq.state.or.us
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Definitions (81)
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sulfur dioxide
A colorless gas that can that can bother the lungs. It is formed when fossil fuels that contain sulfur are burned. It is also given off when volcanoes erupt.
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atmosphere
The layer of air surrounding the earth.
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respiratory system
A body's system for breathing, including the nose, throat, and lungs.
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wetlands
Areas such as tidal flats or swamps covered by shallow water, or where the water table is at or near the surface.
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water table
The upper level of groundwater.
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watershed
The area drained by a given stream.
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water pollution
The addition of enough harmful or objectionable material to damage water quality.
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volatile
Any substance that evaporates at low temperature.
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ventilation
Atmospheric air circulation determined by wind speed and mixing height. The degree of ventilation is an indication of how well air pollution will be dispersed.
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urban runoff
Storm water from city streets, usually carrying litter and organic wastes.
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