Childhood Lead Data

Childhood Lead Data Source Information

New York City (NYC) childhood lead data are available through the NYC Department of Health and Mental Hygiene (DOHMH) Environment & Health Data Portal. These data are derived from blood lead test results reported to Healthy Homes Program (HHP) in the Bureau of Environmental Disease and Injury Prevention.

HHP is responsible for tracking and monitoring blood lead levels among NYC children. Each year, HHP receives blood lead test results for more than 300,000 children under 6 years of age. HHP provides a range of services for children based on their blood lead level.

New York State (NYS) mandates that all children be tested for lead poisoning at age 1 year and age 2 years, and up to age 6 years when a child is found to be at risk. NYS and NYC both require laboratories to report all blood lead test results, and NYC further requires that health care providers report all blood lead test results at or above 10 micrograms per deciliter (mcg/dL) to the DOHMH within 24 hours.

Lead data available through the Environmental and Health Data Portal include the number and percent of children tested for lead before the age of 3 years and the number and rate of children under the age of 6 years with blood lead levels at or above 5 mcg/dL (the CDC reference value). Children younger than 6 years of age are at highest risk for lead exposure due to age-related behaviors that expose them to lead-based paint and dust. Lead-based paint hazards are the most common sources of lead poisoning in NYC.

Additional lead data are available through publications and annual reports to City Council.

More information about lead poisoning prevention, visit Lead Poisoning Prevention page.