According to the EPA, there is no safe level of lead in the blood, and so the maximum contaminant level goal (MCLG) for lead in water is zero. Even at low levels, lead is harmful to human health. It can also remain in the body and build up over time with repeated exposure.

Some of the signs that could mean your water is contaminated, such as cloudiness or bubbliness, could also be non-problems that don’t affect your water’s potability. However, if your water smells or tastes strange, it’s a good idea to stop drinking it and test it immediately. If your well water is contaminated, the best way to discover that is to test it.

Exterior paint contains a higher level of VOCs, which can be dangerous if you’re exposed to it for a long period of time. The good news is that paint’s toxicity reduces significantly once fully dried and cured. Do not keep open exterior paint cans in your home, basement, or garage, exposing your household to harmful chemicals over time.

A lead paint inspection is a thorough examination and assessment of a building or structure to determine the presence of lead-based paint. Lead-based paint was commonly used in buildings before 1978 when its health hazards were fully understood. Lead is toxic and can pose health risks, particularly to young children and pregnant women. Getting a lead paint inspection means finding a lead paint inspector to examine the surfaces of the building—such as walls, ceilings, doors, windows, and other painted areas—and identify the presence of lead-based paint.