مسرد بيئي N

المعجم البيئي مشروع قيد العمل يحتاج ترجمة وإضافات

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• NAAQS See “National Ambient Air Quality Standards (NAAQS).”
• NACE National Association of Corrosion Engineers.
• Nadir® Cross .ow .ltration membranes by Celgard LLC.
• NAE National Academy of Engineering.
• NAFCO® Fibrous precoat .lter aid by Liquid-Solids Separation Corp.
• NaHMP See “sodium hexametaphosphate.”
• Nalclear® Anionic/nonionic polymer for sedimentation and sludge conditioning

• by Nalco Chemical Co. Nalmet® Solution polymer for reducing soluble metal concentrations to low levels by Nalco Chemical Co. nano.ltration (NF) A specialty membrane .ltration process which rejects solutes
• larger than approximately 1 nanometer (10 angstroms) in size. nanometer A unit of length equal to one billionth (10–9) of a meter. NAPAP National Acid Precipitation Assessment Program. NAPC National Air Pollution Control Association. NAPL See “nonaqueous phase liquid (NAPL).”

• nappe (1) A sheet of water .owing over a weir or dam. (2) An arch-shaped sheet of rock forced over underlying rocks by internal stresses.
• napthalene A synthetic organic chemical used as a moth repellent and fungicide. Chemical formula is C10H8.
• Nara Paddle dryer/processor by Komline-Sanderson Engineering Corp.
• NAS National Academy of Sciences.
• Nasty Gas™ Regenerative blowers to move noxious or other exotic gases by AMETEK Rotron Bio.ltration.
• natality Birthrate.
• natality rate The number of births per thousand in a speci.c population.
• national ambient air quality standards (NAAQS) U.S. standards established under the Clean Air Act to set limits on criteria pollutant levels in ambient (outdoor) air.
• National Contingency Plan (NCP) U.S. federal regulations promulgated to implement CERCLA and CWA.
• National Emission Standards for Hazardous Air Pollutants (NESHAP) U.S. standards established under CAA to set limits on pollutants which may pose an immediate hazard to human health.
• National Environmental Policy Act (NEPA) A 1969 U.S. public law declaring a national policy that encourages productive and enjoyable harmony between people and their environment to enrich their understanding of ecological sys­tems and natural resources.

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