Water-Quality Trends and Basin Activities and Characteristics for the Albemarle-Pamlico Estuarine System, North Carolina and Virginia

摘要

The report describes results of a study to identify temporal and spatial trendsin water quality in the Albemarle-Pamlico estuarine system and the major rivers that flow into the system, and to investigate relations between basin activities and characteristics and river and estuary water quality. The basin activities and characteristics examined consisted of measurable basin development and activities that could be represented over time. Records of water-quality properties and constituents examined were limited to those with the most observations and greatest period of record. These properties and constituents include: dissolved oxygen, biochemical oxygen demand, pH, alkalinity, hardness, suspended sediment, turbidity, suspended solids, specific conductance, salinity, dissolved solids, chloride, bicarbonate, carbon, nitrogen, phosphorus, bacteria, and chlorophyll-a.