City-Provided Air Quality Monitoring Services (September 2021 – Present)
After five years, South Coast Air Quality Management District (SCAQMD) has completed the most extensive hexavalent chromium air monitoring program in the world and is now turning over routine monitoring to the City of Paramount (click here to see all SCAQMD monitoring results). On September 21, 2021, the City Council unanimously voted to award a contract for air monitoring services to T and B Systems. T and B Systems’ brings years of experience in providing high-quality air monitoring services. For the next year, T and B Systems will take air samples on a weekly basis throughout the City to monitor levels of hexavalent chromium. Here is a running log of monitoring results. Note: The date displayed in the table below only reflects currently active monitors.
Occasionally, filters may be considered invalid if the sampler operation is found outside of the recommended calibration criteria, there are power outages, rainwater impacts the filter or the filter is damaged.
Most Recent Sampling Data (ng/m3)
|wdt_ID||Sample Date||City Hall||Vermont Street||Madison & Minnestoa|
Air Quality Monitor Locations
Monitoring Results & Analysis
Summary of statistics gathered from 11/18/21 – 4/29/22
|Site||Number of Samples||Average|
|Minnesota & Jackson||11||0.188|
|Madison & Minnesota||22||0.488|
|Wesley Gaines Elementary School||16||0.118|
|Lincoln Elementary School||15||0.118|
Notice of Violation (NOV) Issuances
SCAQMD-Provided Air Quality Monitoring Services (Prior to September 2021)Paramount Emissions Investigation Summary of Efforts April 2021 English
Paramount Emissions Investigation Summary of Efforts April 2021 Spanish
Looking for historic monitoring data and documents? Please visit our archive page.