The following table describes LA County post-fire air, soil, and water assessment activities conducted by government and academic institutions occurring in areas impacted by the fires. This plan will be updated weekly and results from the various assessments will be shared publicly on this site as they become available. Information regarding precautions residents can take to reduce risks associated with ash, soot and fire debris can be found here. Questions about the plan can be sent to dph-connect@ph.lacounty.gov.
| Organization/Agency | Area | Number of Sites/Participants | Timeline (Start Date - End Date) |
Results |
|---|---|---|---|---|
| Outdoor air quality | ||||
Colorado State University | Monitor placement at air quality Assessment stations run by SCAQMD: West LA, Reseda, Glendora, Pasadena, and North Hollywood. | 5; collection of PM2.5 filters and VOC tubes - analysis of air pollutants | January 15, 2025 - February 14, 2025 | |
L.A. Fire HEALTH Study Consortium (Harvard, UCLA, UC Davis, UT Austin, USC, Yale) | Altadena Communities Palisades Communities | 50 outside homes / mobile monitoring | February 3, 2025 - March 31, 2025, mobile Assessment beginning February 3 (repeats in the spring) | |
South Coast Air Quality Management District | Altadena Communities Palisades Communities | TBD | The first mobile monitoring survey was conducted in the Altadena/Pasadena area on January 31. The remaining three surveys will be conducted during the first three weeks of February (depending on weather conditions). South Coast AQMD staff is identifying potential locations for stationary monitoring, which will last for 30-days from the collection of the first sample. | |
UCLA Fielding School of Public Health | Altadena Communities Palisades Communities | 14 to-date ~10 more planned | January 8, 2025 - February 18, 2025 | |
JPL/Caltech | Altadena Communities | TBD; particulate matter mass and chemical composition; VOC tubes | TBD | |
California Institute of Technology | Altadena Communities | 25 sensors to measure PM1, PM2.5 and PM10 in and around the burned areas - Network named PHOENIX | 23 Feb - TBD(10 out of 25 sensors up as of March 1st, 2025) | |
US Army Corps of Engineers (USACE) | Altadena Communities Palisades Communities | 23+ sites (additional sites may be added as debris removal operations expand) | 16 March 2025 - end of debris removal operations | |
US Army Corps of Engineers (USACE) | Altadena Communities | 4 sites at the Altadena Golf Course | March 31st - end of debris removal operations | |
| Indoor air - homes | ||||
L.A. Fire HEALTH Study Consortium (Harvard, UCLA, UC Davis, UT Austin, USC, Yale) | Altadena Communities Palisades Communities | 50-100 | February 3, 2025 - March 31, 2025 | |
UCLA Fielding School of Public Health | Altadena Communities Palisades Communities | 14 to-date 10 more planned | January 8, 2025 - February 18, 2025 | |
| Indoor contaminants - homes | ||||
CA Dept of Public Health / CLS Environmental Health Laboratory | Altadena Communities | 5-10 | January 30, 2025 - January 31, 2025; future dates TBD | |
L.A. Fire HEALTH Study Consortium (Harvard, UCLA, UC Davis, UT Austin, USC, Yale) | Altadena Communities Palisades Communities | 50 | February 3, 2025 - March 31, 2025 | |
California Institute of Technology | Altadena Communities | 52 houses | February 5, 2025 - February 13, 2025 | |
| Outdoor soil - yards | ||||
LA County Department of Public Health | Altadena Communities Palisades Communities | Stage 2: Parcels Outside Fire Boundary: 245 parcels (131 Palisades/114 Eaton) No-Damaged Structure Parcels: 300 parcels (153 Palisades/147 Eaton) Minor/Affected Parcels: 235 parcels (129 Palisades/106 Eaton) | March 4, 2025 - March 11, 2025 | |
L.A. Fire HEALTH Study Consortium (Harvard, UCLA, UC Davis, UT Austin, USC, Yale) | Altadena Communities Palisades Communities | 50 | February 3, 2025 - March 31, 2025 | |
California State University, Northridge | Altadena Pasadena Sierra Madre South Pasadena San Marino | Altadena: 5 sites from within Eaton fire boundary, 2 sites from standing structures 2 blocks outside of Eaton fire boundary. Sierra Madre: 1 site from within Eaton fire boundary, 2 sites south of Eaton Fire boundary. Pasadena: 1 site within Eaton fire boundary, 8 sites south, downwind of Eaton fire. South Pasadena: 1 site downwind of Eaton Fire. San Marino: 1 site downwind of Eaton Fire | Samples were collected from 02/09/25-02/12/25 | |
Community Action Project L.A. (CAP.LA) (UCLA, Purdue, Loyola Marymount, Cal Poly Pomona, Tufts, University of Kentucky) | Altadena Communities Palisades Communities | 1,200 | End of March 2025 - May 2025 | |
LA County Department of Public Health | Altadena Communities Palisades Communities | Stage 3: Destroyed Homes after Phase 2 USACE soil/debris removal 30 parcels x 10 samples per parcel (300 samples total) | March 21, 2025 - March 26, 2025 | |
USC CLEAN Project | This project is accepting samples from anyone in L.A. County. | No limit on participants. Visit the CLEAN website to submit samples by mail or at one of the drop-off locations. | Began March 14th, will continue accepting samples indefinitely. | |
| Outdoor soil - public spaces | ||||
California Department of Toxic Substances Control (DTSC) | Altadena Communities Palisades Communities Outside the Burn Scars | TBD, XRF and discrete soil samples | TBD | |
LA County Department of Parks & Recreation | Loma Alta Park 3330 N Lincoln Ave, Altadena, CA 91001 | 1 site | March 18, 2025 - | |
| Outdoor soil - ash/soot | ||||
CA Dept of Public Health / CLS Environmental Health Laboratory | TBD | 5-50 | January 7, 2025 - February 7, 2025; future dates TBD | |
UCLA Fielding School of Public Health | Altadena Communities Palisades Communities | 52 grab samples | January 15, 2025 - January 25, 2025 | |
LA County Department of Public Health | Altadena Communities Palisades Communities | Stage 1: Parcels with Destroyed homes: 50 parcels (30 Palisades/20 Eaton) Ambient Parcels: 30 parcels (15 Palisades/15 Eaton) | February 18, 2025 - February 28, 2025 | |
| Coastal sand | ||||
Los Angeles County Department of Public Works | Sediment at Will Rogers and Topanga State Beaches | One time, February 2, 2025 | ||
Los Angeles Regional Water Quality Control Board | Wet sand from 15 beaches: Zuma Beach, Surfrider Beach, Topanga County Beach, Topanga Canyon Lagoon, Will Rogers State Beach, Will Rogers State Beach at Santa Monica Canyon, Montana Avenue Storm Drain, Santa Monica Beach North of Pier, Santa Monica Beach, Rose Avenue Storm Drain, Venice Beach, Mothers Beach, Dockweiler Beach, Redondo Break, RAT Beach | 15 | Feburary 25, 2025 - May 2025 | |
| Ocean Water and Surface Water | ||||
Los Angeles Regional Water Quality Control Board | Altadena Communities Palisades Communities | 12 coast sites; expanding to include both fires and both watersheds through monitoring effort organized with SCCWRP | January 22, January 27, February 6, February 18 March 13 | |
Surfrider Foundation Los Angeles | Lifeguard Tower 26, Mother's Beach, Pico-Kenter Storm Drain, Santa Monica Pier, Sunset Point, Surfrider Beach, Topanga Beach, Venice Beach Breakwater, Venice Driftwood, Will Rogers State Beach - Tower 14/storm drain, Will Rogers State Beach - Tower 8 | 11 sites | April 19 - Ongoing (samples collected every 2 weeks) | |
| Tap Water | ||||
L.A. Fire HEALTH Study Consortium (Harvard, UCLA, UC Davis, UT Austin, USC, Yale) | Altadena Communities Palisades Communities | 50 | February 3, 2025 - March 31, 2025 | |
California Institute of Technology | Altadena Communities | 52 houses | February 5, 2025 - February 13, 2025 | |
| Household Pools | ||||
Community Action Project L.A. (CAP.LA) (UCLA, Purdue, Loyola Marymount, Cal Poly Pomona, Tufts, University of Kentucky) | Altadena Communities Palisades Communities | 100 | March 2025 - April 2025 | |
SGV Mosquito and Vector Control District | Altadena Communities | 744 (additional sites pending funding) | March 17th - May 3rd | |
| Public Pools | ||||
SGV Mosquito and Vector Control District | Altadena Communities | 1 site at Loma Alta Park | March 17th - May 3rd | |
| Human Biological | ||||
LA County Department of Public Health - Blood lead level testing | Altadena Communities Palisades Communities | Ways to get tested: 1) Personal Medical Provider 2) Free appt through Quest Labs 3) Visit a community event where Public Health is offering free testing (see http://publichealth.lacounty.gov/media/Wildfire/ for list of community events) | Testing at select community events, March - May 2025 Appointments through Quest Labs available March - August 2025 | |
L.A. Fire HEALTH Study Consortium (Harvard, UCLA, UC Davis, UT Austin, USC, Yale) | Altadena Communities Palisades Communities | 20 firefighters | January 9, 2025 - January 10, 2025 | |
No results found.