The flames from wildfires aren’t always the most dangerous part

The spate of devastating fires hitting the Los Angeles area has dominated headlines and understandably so. Previous research has established that tiny particles in the air are linked to dementia, but the researchers found that long-term exposure to wildfire smoke specifically “was associated with dementia diagnoses.” They added that as climate change worsens, “interventions focused on reducing wildfire PM2.5 exposure may reduce dementia diagnoses and related inequities.” To conduct their research, the scientists looked at health data from more than 1.2 million people from between 2008 and 2019 among members of Kaiser Permanente Southern California. Within this cohort, they discovered “people with higher exposure to wildfire fine particulate matter had elevated risk of developing dementia,” explained Dr. Joan Casey, the study’s corresponding author and a professor of public health at the University of Washington. developing dementia, enough so that there is effectively a causal connection there.” Mann added, “This is yet another example of the profound, yet grossly understated negative health consequences of human-caused climate change.” Dr. Kevin Trenberth, a distinguished scholar at the National Center for Atmospheric Research, told Salon that he is not surprised the study found adverse effects of wildfire pollution. “Think of all the poor animals exposed.” We need your help to stay independent Subscribe today to support Salon's progressive journalism Scientists writing in 2022 for the journal Environmental Research described air pollution broadly as an underrecognized public health risk, arguing that “policy needs to be matched by scientific evidence and appropriate guidelines, including bespoke strategies to optimise impact and mitigate unintended consequences.” In addition to mitigating the impacts of climate change, experts urge ordinary citizens to take measures to protect their lungs during times of intense air pollution.