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Search Results for the EPA National Library Catalog
Items Found: 147
Showing: Items 1 - 50
Your Search: (SUBJECT=Periodic variations)
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Title
Year Published
1
A climatology of temperature and precipitation variability in the United States /
1989
2
Acid precipitation patterns and trends in eastern North America, 1980-1984 /
1987
3
Air Pollution: Appendix E - Air Pollution Case Study of the South Holland Region (First Phase) - 1973, No. 6.
1973
4
Air quality data : 1974 first quarter statistics /
1975
5
Ammonia investigations in the Colorado River, Grand Junction and Fruita, Colorado /
1979
6
Analysis of hot/cold cycle requirements for heavy-duty vehicles /
1978
7
Analysis of Polychlorinated Biphenyl (PCB) Loading Trends in Lake Michigan.
1983
8
Annual and seasonal precipitation probabilities /
1977
9
Annual Nutrient Cycles in a Marine Microcosm.
1982
10
Atmospheric inputs of phosphorus to southern Lake Huron, April-October 1975 /
1977
11
Category selection for transient heavy-duty chassis and engine cycles /
1978
12
Characteristics of Particulate Patterns, 1957-1966.
1970
13
Characterization of Spatial and Temporal Trends in Water Quality in Puget Sound.
1988
14
Characterizing and controlling urban runoff through street and sewerage cleaning /
1985
15
Climatic Effects of 1950-2050 Changes in US Anthropogenic Aerosols.
2012
16
Comparison of Mid-Bay and lateral station water quality data in the Chesapeake Bay Mainstem : Chespaeake Bay Program.
1993
17
Computer Simulation of Eutrophication.
1973
18
Conceptual Designs and Cost Estimates for E-SOx Retrofits to Coal-Fired Utility Power Plants.
1987
19
Cost effectiveness analysis of effluent guidelines and standards for the aluminum forming industry.
1983
20
Dependencies and Sensitivity of Tropospheric Oxidants to Precursor Concentrations over the Northeast United States: A Model Study.
1994
21
Determining Wastewater Treatment Costs for Your Community.
1979
22
Digital Topographic Approach to Modeling: The Distribution of Precipitation in Mountainous Terrain.
1992
23
Distribution and abundance of submerged aquatic vegetation in the lower Chesapeake Bay, Virginia /
1979
24
Distribution and abundance of waterfowl and submerged aquatic vegetation in Chesapeake Bay
1982
25
Distribution of Submersed Vascular Plants, Chesapeake Bay, Maryland.
1980
26
Dynamic Simulation of Vertical Infiltration into Unsaturated Soils.
1971
27
Economic evaluation of the promulgated interim primary drinking water regulations
1975
28
Economic evaluation of the proposed interim primary drinking water regulations.
1975
29
Effects of Gridded Precipitation Bias on Wet Deposition Predictions.
1986
30
Effects of Simulated Acidic Rain Applied Alone and in Combination with Ambient Rain on Growth and Yield of Field-Grown Snap Bean.
1984
31
Efficacy of Ozone Exposure Indices in the Standard Setting Process.
1990
32
Environmental Improvements in Lake Erie during the Past Decade.
1982
33
Environmental investments : the cost of a clean environment : report of the Administrator of the Environmental Protection Agency to the Congress of the United States /
1990
34
Environmental Measurements: Valid Data and Logical Interpretation; Symposium.
1964
35
Environmental monitoring and assessment program : ecological indicators /
1990
36
Environmental Survey of the Lower Clearwater River.
1970
37
Estimating Cloud Parameters for NEROS I.
1982
38
Estimation of seasonal and annual acidic deposition through aggregation of three-day episodic periods /
1990
39
Evaluating indirect sources /
1975
40
Evaluation of a System for the Imposition of Plant Water Stress.
1985
41
Evaluation of Alternative Service Improvements.
1969
42
Evaluation of Shavers Fork Mine Seals.
1971
43
Evaluation of the Multiple Source Gaussian Plume Diffusion Model - Phase II.
1975
44
Fish kills caused by pollution : fifteen year summary, 1961-1975 /
1979
45
Fish kills caused by pollution in 1975 Sixteenth annual report (Report for 1 Jan 75 to 31 Dec 75) [MICROFICHE].
1977
46
Great Lakes Hydrology by Months, 1946-1965.
1972
47
Health Advisory for Hexahydro-1,3,5-Trinitro-1,3,5-Triazine (RDX).
1988
48
Health Advisory for Octahydro-1,3,5,7-Tetranitro 1,3,5,7-Tetrazocine (HMX).
1988
49
HF radar measurements of circulation in the eastern Strait of Juan de Fuca near Protection Island (July, 1979) /
1980
50
Hourly Values of Equatorial Dst, 1957 - 1970.
1971
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