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Annual Nitrogen Dioxide (NO2) concentration

Annual Nitrogen Dioxide (NO2) concentration is include in the Threshold Dashboard. Threshold Indicators are evaluated against Threshold Standards every 4 years. Thresholds are environmental goals and standards for the Lake Tahoe Basin that indirectly define the capacity of the Region to accommodate additional land development.

Status

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Annual estimated nitrogen oxide emissions (tons/day) for the California portion of the Lake Tahoe Region. While the TRPA 1982 Threshold Study Report estimated 1981 NOx daily emissions to be 9.4 tons, CARB estimated 1980 levels to be 5.6 tons/day (red line). Because consistent CARB data exists, CARB estimates are used as the threshold standard. Source: CARB (2015) emission inventory for the California portion of the Lake Tahoe Air Basin and TRPA. NOx concentrations as measured at the newly established TRPA Stateline monitoring location. While no official TRPA standards exist for NOx concentrations, this data is used to evaluate NOx concentrations against CA and Federal standards. Source: TRPA

Applicable Standard

California: Annual average NO2 concentration not to exceed 0.030 ppm,

Key Points

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Delivering and Measuring Success

Transportation Indicators