National Trends Network - Station NC36

Sulfate trends, 1983-2006

Background

The National Atmospheric Deposition Program/National Trends Network (NADP/NTN) is a nationwide network of over 250 precipitation monitoring sites. The network is a cooperative effort between many different groups, including the U.S. Geological Survey, who has operated the Jordan Creek Station (NC36) in Scotland County, North Carolina since 1983.

Objectives

The purpose of the network is to collect data on the chemistry of precipitation for monitoring of geographical and temporal long-term trends.

Approach

The precipitation at each station is collected weekly according to strict clean-handling procedures. It is then sent to the Central Analytical Laboratory in Champaign, Illinois where it is analyzed for hydrogen (acidity as pH), sulfate, nitrate, ammonium, chloride, and base cations (such as calcium, magnesium, potassium and sodium).

Available data

• NADP/NTN Monitoring Location - Jordan Creek (NC36)
• NADP/NTN Sites in North Carolina
• All NADP/NTN Sites