||Population Estimation of Streams in the Maryland Coastal Plain Receiving Acidity Inputs from Acidic Deposition and Agricultural Sources.
Janicki, A. ;
Wilson, H. ;
||Coastal Environmental Services, Inc., Linthicum, MD.;Maryland Dept. of Natural Resources, Annapolis. Chesapeake Bay Research and Monitoring Div.;Maryland Power Plant Research Program, Annapolis.
||1 Oct 94
Water pollution ;
Land use ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
The problem of identyfing and assessing the relative importance of alternative sources of acidity in Maryland Coastal Plain streams was addressed by Janicki et al. (1990). They developed a model using acid neutralizing capacity (ANC) and conductivity data, which were collected during the Maryland Synoptic Stream Chemistry Survey (MSSCS), to postulate the potential sources of acidity in streams in Maryland's Coastal region. This model classified streams into four classes or groups: Group I - low ANC and low conductivity; Group II - high ANC and low conductivity; Group III - high ANC and high conductivity; and Group IV - low ANC and high conductivity. (Low ANC is defined as equal to or less than 200 micro eq/l and low conductivity is defined as equal to or less than micro S/cm.) Land use/cover patterns in the watersheds associated with these streams differed significantly among the four groups.