GRAVES ES Air Monitoring Station, Summit, Illinois | United States

GRAVES ES is an air monitoring station located in Summit, Cook County, Illinois, United States. Operated within the national ambient air quality monitoring framework, it supports the assessment of criteria pollutants and other atmospheric parameters. As part of the US EPA Air Quality System (AQS), the station plays a role in tracking compliance with National Ambient Air Quality Standards (NAAQS). The station is situated in an urban-industrial area near Chicago, where monitoring focuses on pollutants such as ozone, particulate matter, nitrogen dioxide, and sulfur dioxide. While specific parameter lists are not detailed, typical stations in this region measure a range of criteria pollutants and meteorological variables. The data collected informs regulatory decisions and public health advisories. Environmental monitoring at GRAVES ES contributes to understanding air quality trends in a densely populated and industrialized corridor. Continuous operation ensures long-term data records that support epidemiological studies and policy evaluation. The station's location near major transportation routes and industrial facilities makes it representative of mixed urban exposure scenarios.

Summit, Illinois lies within the Chicago metropolitan area, a region with significant industrial activity, heavy traffic, and historical air quality challenges. Air monitoring stations like GRAVES ES are critical for tracking ozone and particulate matter levels, which are influenced by local emissions and regional transport. The station's siting in a mixed residential-industrial zone provides representative data for population exposure assessments. Regulatory oversight under the US EPA AQS ensures standardized methods and quality assurance, supporting long-term trend analysis and attainment demonstrations.