JHS 126 Air Monitoring Station, Brooklyn, New York City

JHS 126 is an air monitoring station located at 424 Leonard Street in the Brooklyn borough of New York City, New York. Operated by the New York State Department of Environmental Conservation, this station is part of the extensive US EPA Air Quality System (AQS) network, which monitors criteria pollutants and other atmospheric parameters across the United States. The station is situated in a dense urban environment, representative of residential and commercial exposure. As part of the New York State monitoring network, it likely measures pollutants such as ozone, particulate matter, nitrogen dioxide, and sulfur dioxide, in accordance with EPA monitoring requirements. The station's last reported sample date is June 27, 2025, indicating ongoing data collection. Air monitoring stations like JHS 126 play a critical role in assessing urban air quality, supporting regulatory compliance with the Clean Air Act, and informing public health advisories. Data from this station contributes to regional air quality trends and helps evaluate the effectiveness of emission reduction strategies in New York City.

New York City's air quality is influenced by high population density, traffic emissions, industrial activities, and building heating. The JHS 126 station provides data on criteria pollutants, supporting the EPA's National Ambient Air Quality Standards (NAAQS) compliance. Its urban siting ensures representative monitoring of population exposure, while continuous reporting helps track long-term trends and episodic pollution events.