Search Results for the EPA National Library Catalog

Items Found: 251
Showing: Items 1 - 50
Your Search: (SUBJECT=Ecological concentration)

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Select Item	Title	Year Published
1	1993 nonmethane organic compounds and speciated nonmethane organic compounds monitoring program /	1994
2	1994 non-methane organic compounds and speciated non-methane organic compounds monitoring program : final report /	1996
3	1994 nonmethane organic compounds and speciated nonmethane organic compounds monitoring program /	1996
4	1995 updates : water quality criteria documents for the protection of aquatic life in ambient water /	1996
5	1997 nonmethane organic compounds (NMOC) and speciated nonmethane organic compounds (SNMOC) monitoring program /	1999
6	1997 urban air toxics monitoring program (UATMP) /	1999
7	1998 nonmethane organic compound (NMOC) and speciated nonmethane organic compound (SNMOC) monitoring program /	1999
8	2000 Nonmethane organic compounds (NMOC) and speciated nonmethane organic compounds (SNMOC) monitoring program /	2001
9	2001 nonmethane organic compounds (NMOC) and speciated nonmethane organic compounds (SNMOC) monitoring program.	2002
10	2DFATMIC Two-dimensional subsurface flow, fate and transport of microbes and chemicals model users manual version 1.0	1997
11	3DFATMIC Three dimensional subsurface flow, fate and transport of microbes and chemicals model user's manual version 1.0	1997
12	A field study to compare performance of stainless steel research monitoring wells with existing on-farm drinking water wells in measuring pesticide and nitrate concentrations /	1998
13	A Probabilistic methodology for analyzing water quality effects of urban runoff on rivers and streams : final report.	1989
14	A review of single species toxicity tests : are the tests reliable predictors of aquatic ecosystem community responses? /	1999
15	Adjustments to the HUD National Survey Dust Data for Section 403 analyses : final report /	1996
16	Advances in Dense Gas Dispersion Modeling of Accidental Releases Over Rough Surfaces during Stable Conditions.	1997
17	Advances in Inhalation Gas Dosimetry for Derivation of a Reference Concentration (RfC) and Use in Risk Assessment.	2012
18	Aggregation and Episode Selection Scheme for EPA's Models-3 CMAQ.	1999
19	Aggregation of Selected RADM Simulations to Estimate Annual Ambient Air Concentrations of Fine Particulate Matter.	1995
20	Aggregation Using Cluster Analyses for Models-3 CMAQ Applications.	1997
21	Air concentrations and inhalation exposure to pesticides in the Agricultural Health Pilot Study /	1997
22	Air quality criteria for ozone and related photochemical oxidants : volume 1 of 3.	1996
23	Air quality criteria for ozone and related photochemical oxidants : volume 2 of 3.	1996
24	Air quality criteria for ozone and related photochemical oxidants.	2006
25	Air Quality Criteria for Ozone and Related Photochemical Oxidants. Volume 2 of 3.	2006
26	Air Quality Criteria for Ozone and Related Photochemical Oxidants. Volume 3 of 3.	1996
27	Air Quality Criteria for Ozone and Related Photochemical Oxidants. Volume 3 of 3.	2006
28	Air Quality Criteria for Particulate Matter. Volume 1 of 3.	1996
29	Air Quality Modeling of PM and Air Toxics at Neighborhood Scales.	2000
30	Air quality trends.	1995
31	Alaska placer mining metals study	1998
32	Alaska placer mining metals study : year two /	1999
33	Ambient air monitoring plan for Ciudad Acu na and Piedra {sic} Negras, Coahuila, Mexico	1998
34	Ambient aquatic life water quality criteria for tributyltin : draft /	1997
35	Ambient levels and noncancer health effects of inhaled crystalline and amorphous silica {Microfiche} : health issue assessment /	1996
36	Amoco-U.S. Environmental Protection Agency Pollution Prevention Project, Yorktown Virginia. Risk Reduction Benefits of Pollution Prevention Options.	1993
37	Amphibian toxicity data for water quality criteria chemicals /	1996
38	Amphibian toxicity data for water quality criteria chemicals /	1996
39	An assessment of sediments from the Upper Mississippi River : final report - June 1997.	1997
40	An SAB report : review of the source ranking database /	1998
41	An SAB report : technical review of the proposed TSCA section 403 regulation (identification of dangerous levels of lead) /	1998
42	Analytical methods for U.S. EPA priority pollutants and 301(h) pesticides in estuarine and marine sediments : final report /	1986
43	Application of a hybrid compartmental model to the Neuse River basin of North Carolina /	1998
44	Are the fish safe to eat? : assessing mercury levels in fish in Maine lakes /	1997
45	Argentum International Conference Proceedings (3rd): Transport, Fate and Effects of Silver in the Environment. Held in Washington, DC. on August 6-9, 1995.	1996
46	Assesing Transboundary Influences in the Lower Rio Grande Valley.	1999
47	Assessment and remediation of contaminated sediments (ARCS) program : quality assurance program plan /	1993
48	Assessment of deposition levels of sulfur and nitrogen required to protect aquatic resources in selected sensitve regions of North America /	1996
49	Assessment of Emissions from a Hazardous Waste Incineration Facility.	1982
50	Assessment of Waukegan Harbor Sediment Contamination, April 1996.	1997

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