Exide Home  >  Residential Cleanup  > Parkways Cleanup > Parkways Air Monitoring

Fugitive dust control and air monitoring is performed at each residential parkway sub-block to comply with federal, state, and local air quality regulations (South Coast Air Quality Management District (SCAQMD) Rules 403 and/or 1466) for dust emissions, as well as DTSC’s Work Plan that require application of specific measures during all earth-moving operations. Air monitoring performed during soil excavation and backfilling activities uses real-time particulate monitors. Based on real-time air monitoring data evaluated by field staff, the work is stopped if necessary, and dust suppression measures immediately put in place to minimize dust emission. Results of air monitoring and air quality standards are presented for each cleanup within two business days after the data has been uploaded for residential parkway sub-blocks cleaned up after November 21, 2024. The information includes the wind speed, upwind and downwind measurement in addition to 1-hour rolling average and 5-hour average difference between the upwind and downwind data¹. Below is a dashboard where you can view the specific air monitoring data by selecting a specific sub-block and date.

The user guide for the PowerBI dashboard is here: Parkways Air Monitoring Dashboard User Guide

What are Sub-Blocks?

A Block is typically bounded on all sides by public roads. The area between the properties and the roads are designated as Sub-Blocks. Each Sub-Block has been given a unique Sub-Block name. The cleanup will address all the parkways contained within a Sub-Block on one side of the road for an entire block. The cleanup will proceed on a block by block or street by street manner as appropriate.

To find the name of the Sub-Block to search for in the dashboard, or the data table, please follow these instructions:

1. Open the Parkways Interactive Map
2. Zoom in and click on the particular street segment of interest.
3. The Sub-Block will be highlighted in blue on the map and the name will be displayed to the right, as in the image below:

¹  The data provided are preliminary and are subject to change. The results displayed are for summary purposes. Additional data can be provided on a per subblock basis by submitting a request in the Exide Cleanup Feedback Management System.

Legend:

Downwind = PM10 air monitoring location downwind of the area of on-site earth-moving activity
Down-Up = The Downwind PM10 point-in-time measurement minus the Upwind PM10 point-in-time measurement
1-hr Avg = the average of the Downwind minus the Upwind measurements taken each minute over a 1-hour period during working hours
5-hr Avg = the average of the Downwind minus the Upwind measurements taken each minute over a 5-hour period during working hours
“- -” = the average is not provided until enough measurements have been taken. One hour of data are required to provide a 1-hour average and five hours of data are required to provide the 5-hour average.
Test No. = Test Number. Test Number 1 is the measurement taken at the beginning of the workday. Test Number 2 is the measurement at the end of the first hour of work. Test Number 3 is at the end of the second hour of work, and so forth.
MPH = Miles Per Hour
NM = No Measurement, see dashboard page 2 or data download table for comments
PM10 = Airborne particulate matter with a diameter of 10 microns or less
Upwind = PM10 air monitoring location upwind of the area of on-site earth-moving activity
ug/m³ = micrograms per cubic meter

Below is a downloadable version of the entire parkways air monitoring data set updated on a weekly basis.
Downloadable Data Table

A user guide is available for the downloadable data table here: Data Table User Guide