Dataset Overview

Weekly concentrations of NOx, SOX, Ca, Na, Mg, K and Cl for use in Aquatic Acidification model

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This project will assess the relationship between a proposed index of aquatic acidification due to airborne pollutants and the concentrations in air of ammonium, nitrogen oxides and sulfur oxides.

Data Collection Status

Data collection for this dataset is ongoing

Start date



72 records with 16 fields

Data Availability

Available for download

Data License

CC BY-NC-SA - Attribution, Non-commercial, Share alike license logo

Preferred Citation

U.S. Environmental Protection Agency Clean Air Markets Division Clean Air Status and Trends Network (CASTNET) [Data table(s) accessed (i.e., Hourly Ozone, Annual Total Deposition)] Available at Date accessed: [month day, year]

Update Frequency


Maintenance Plan

Weekly collection by VMC staff


  • Clean Air Status and Trends Network (CASTNET) page
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