The Flames Are Gone, but Fires’ Remnants Remain Dangerous
Lead Detection and Contamination
Researchers from the University of Southern California have found elevated levels of lead in fire-ravaged areas, particularly in areas affected by last month’s fires. The high winds and other factors helped spread lead-containing ash, making it a significant health concern.
Airborne Ash Mitigated by Rains, but Cleanup Crucial
The recent rainstorms in Southern California have washed away much of the lead-containing ash, reducing the risk of inhaling toxic dust. However, cleanup crews must be cautious when clearing out burned materials, as resuspending ash could still pose a threat.
The Double-Edged Sword of Rain
While rain reduced the airborne danger, it also picked up ash and its hazardous elements, dispersing them widely and unpredictably. Some of the ash may settle in gutters, eventually making its way into rivers and the ocean.
Long-Term Lead Accumulation and Health Risks
Los Angeles has a history of lead accumulation, dating back to leaded gasoline, paints, and industrial uses. The EPA’s recent decision to lower the screening level for lead in soil has identified more contaminated sites, making it crucial to remediate these areas before they can be safely used again.
The Consequences of Inaction
Lead persists for an extremely long time, accumulating in the environment and posing a significant health risk. If not properly addressed, lead contamination can lead to serious health issues, including lead poisoning, which can occur even at small exposure levels.
Protecting Yourself and Your Family
To minimize the risks, follow these tips:
- When near burn areas and sites of possible airborne ash, wear personal protective equipment, including a tight-fitting N95 mask or P100 respirator, rubber gloves, long-sleeve shirt and pants, socks and shoes, and eye protection.
- Wet ash before cleaning it up to prevent it from becoming airborne again.
- Rinse fruits and vegetables thoroughly before eating.
- Wipe your pet’s feet clean and give it a bath if it encounters ash.
- Use an air purifier to clean the interior of your home.
Frequently Asked Questions
Q: What is the primary concern after the fires?
A: Lead exposure and contamination are significant health risks.
Q: Can lead be washed away by rain?
A: Yes, but it can also pick up ash and disperse it widely, posing a new set of risks.
Q: How long does lead persist in the environment?
A: Lead can accumulate in the environment for an extremely long time, posing a long-term health risk.
Q: What are the potential health risks of lead exposure?
A: Lead exposure can cause serious health problems, including lead poisoning, even at small exposure levels.
