Nitrogen Dioxide Air Quality Measurements from a National Monitoring System

Measured concentrations of nitrogen dioxide, a main indicator of ambient air quality. The data is collected by the National Ambient Air Quality Control System under the Clean Ambient Air Act. The dataset covers a specific period from October 1st to December 31st, 2025.

Use Cases

• Analyze daily and seasonal nitrogen dioxide pollution trends based on the time-series nature of the data.
• Assess compliance with air quality standards based on measured concentration levels.
• Model the impact of environmental regulations based on data from a national monitoring system.

Strengths

• Data is collected under a national regulatory framework (Clean Ambient Air Act).
• Covers a defined three-month period from October to December 2025.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the eu_open_data source.

Provenance

Source

Data Department - State e-Government Agency

Collection Method

Measurements from the National Ambient Air Quality Control System.

Time Range

October 1, 2025 - December 31, 2025