A a See"Angstrom(A) A&I Alternative and Innovative A/0 Wastewater treatment process for biological removal of nitrogen by USFil A2/0 Biological treatment process for phosphorus and nitrogen removal by USFil- ter/ Kruger A'CTM Biological wastewater treatment system by Baker Process- Municipal Division A /R Photocatalytic process to destroy VOCs by Trojan Technologies, Inc AA See"atomic absorption spectrophotometry(AA) AAEE American Academy of Environmental Engineers aaP Asbestos action program. AAPCo American ssociation of pesticide control officials AAQS Ambient air quality standard AARC Alliance for Acid Rain Control aa American association for the advancement of science ABA1o00 Alumina oxide for phosphate reduction by Selecto, Inc ABA2000 Alumina oxide for lead and heavy metals removal by Selecto, Inc ABA8000 Alumina oxide for fluoride removal by Selecto, Inc abandoned well A well whose use has been permanently discontinued or which is in a state of such disrepair that it cannot be used for its intended purpose abatement Reducing the degree or intensity of, or eliminating, pollution abattoir A place where animals are slaughtered for their meat and meat byproduct ABC Filter Automatic backwashable cartridge filter by USFilter/Rockford Abcor Ultrafiltration membrane product by Koch Membrane Systems, Inc. ABF Activated bio-filtration wastewater treatment system by Infilco Degremont ABF Traveling bridge type automatic backwashing gravity sand filter by Aqua- Aerobic Systems, Inc. abiocoen All of the geologic, climatic, and other nonliving elements of an eco- system. abiotic Nonliving elements in the environment. ABJM ABJ product group of Sanitaire Corp ablation The combined processes of glacial melting and evaporation which results in a net loss of ice The lower part of a glacier where the net loss of ice exceeds the net ABs (1) Acrylonitrile-butadiene-styrene. A black plastic material, used in the man- ufacture of pipes and other components (2) Alkyl-benzene-sulfonate. A sur- factant formerly used in synthetic detergents that resisted biological breakdownA Å See “Angstrom (Å).” A&I Alternative and Innovative. A/O® Wastewater treatment process for biological removal of nitrogen by USFil￾ter/Krüger. A2/O® Biological treatment process for phosphorus and nitrogen removal by USFil￾ter/Krüger. A2C™ Biological wastewater treatment system by Baker Process — Municipal Division. A·I·R Photocatalytic process to destroy VOCs by Trojan Technologies, Inc. AA See “atomic absorption spectrophotometry (AA).” AAEE American Academy of Environmental Engineers. AAP Asbestos Action Program. AAPCO American Association of Pesticide Control Officials. AAQS Ambient air quality standards. AARC Alliance for Acid Rain Control. AAS American Association for the Advancement of Science. ABA1000® Alumina oxide for phosphate reduction by Selecto, Inc. ABA2000® Alumina oxide for lead and heavy metals removal by Selecto, Inc. ABA8000® Alumina oxide for fluoride removal by Selecto, Inc. abandoned well A well whose use has been permanently discontinued or which is in a state of such disrepair that it cannot be used for its intended purpose. abatement Reducing the degree or intensity of, or eliminating, pollution. abattoir A place where animals are slaughtered for their meat and meat byproducts. ABC Filter™ Automatic backwashable cartridge filter by USFilter/Rockford. Abcor® Ultrafiltration membrane product by Koch Membrane Systems, Inc. ABF Activated bio-filtration wastewater treatment system by Infilco Degremont, Inc. ABF Traveling bridge type automatic backwashing gravity sand filter by Aqua￾Aerobic Systems, Inc. abiocoen All of the geologic, climatic, and other nonliving elements of an eco￾system. abiotic Nonliving elements in the environment. ABJ™ ABJ product group of Sanitaire Corp. ablation The combined processes of glacial melting and evaporation which results in a net loss of ice. ablation zone The lower part of a glacier where the net loss of ice exceeds the net gain. ABS (1) Acrylonitrile-butadiene-styrene. A black plastic material, used in the man￾ufacture of pipes and other components. (2) Alkyl-benzene-sulfonate. A sur￾factant formerly used in synthetic detergents that resisted biological breakdown