Environmental health hazards Learn how to deal with extreme weather and other hazards that could affect your health. Report an environmental justice concern Environmental justice ensures that all communities enjoy the same degree of protection from environmental and health hazards. Check air quality Find current air quality information for Philadelphia, including air quality index (AQI) readings. Lead exposure Information for Philadelphians about lead safety. Extreme weather Get relief from extreme hot or cold weather. Get your child tested for lead Information for parents and caregivers about how to get their child tested for lead poisoning. Protect yourself from West Nile virus and Lyme disease Learn how to protect yourself from West Nile virus and Lyme disease. Coronavirus Disease 2019 (COVID-19) Learn more about how the Department of Public Health is providing services, support, and guidance to reduce the spread of COVID-19.