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The environment database and a glossary about facts, terms and descriptions

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Glossary B

The Environmental Glossary. Letter B +++ Popular Articles: 'Biodiversity', 'Bird', 'Balance'

Bronchoalveolar lavage (BAL)

A Bronchoalveolar lavage (BAL) is a Clinical technique which removes cell samples from the lower lungs to allow assessment of Inflammation and other respiratory conditions.

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Bronchoconstrictor

A Bronchoconstrictor is an Agent that causes a reduction in the caliber (diameter) of airways.

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Bronchodilator

A Bronchodilator is an Agent that causes an increase in the caliber (diameter) of airways.

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Bronchus

A Bronchus is One of the subdivisions of the trachea serving to convey air to and from the lungs.

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Brooding

A Brooding is Early period of growth when supplemental Heat must be provided, due to the birds inability to generate enough

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Brownfields

Brownfields are abandoned, idled, or under used industrial and commercial facilities/sites where expansion or redevelopment is complicated by real or perceived Environmental contamination.

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Bt Corn

A Bt Corn is Field corn that has received a gene transferred from a naturally-occurring soil bacterium called Bacillus thuringiensis. The gene causes the corn plant to produce one of

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Bubble

A Bubble is a system under which existing emissions sources can propose alternate means to comply with a set of emissions limitations; under the bubble concept, sources can control more than required at one emission point where control costs are relatively low in return for a comparable relaxation of controls at a second emission point where costs are higher.

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Bubble Policy

A Bubble Policy is (See: Emissions trading.)

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Bucket Milking System

A Bucket Milking System is a system in which the milk coming from the Cow is drawn into a bucket or pail and manually transferred to a collection area or the milk house.

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