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At EWG, our team of scientists, engineers, policy experts, lawyers and computer programmers pores over government data, legal documents, scientific studies and our own laboratory tests to expose threats to your health and the environment, and to find solutions. Our research brings to light unsettling facts that you have a right to know.
Table 1: More than 282,000 California children live in areas of very high or critical risk of lead poisoning: Table 1: More than 282,000 California children live in areas of very high or critical risk of lead poisoning
| County | Very High Risk Tracts | Children in Very High Risk Tracts | Critical Risk Tracts | Children in Critical Risk Tracts |
|---|---|---|---|---|
| Los Angeles | 245 | 147,543 | 58 | 27,319 |
| Alameda | 37 | 10,698 | 34 | 11,656 |
| San Francisco | 31 | 9,019 | 12 | 2,631 |
| Fresno | 19 | 14,433 | 2 | 663 |
| San Diego | 18 | 13,127 | 2 | 614 |
| Sacramento | 14 | 5,819 | 2 | 904 |
| Kern | 13 | 7,937 | 0 | 0 |
| Contra Costa | 8 | 3,892 | 0 | 0 |
| San Joaquin | 7 | 3,418 | 0 | 0 |
| San Bernardino | 6 | 3,666 | 0 | 0 |
| Monterey | 5 | 4,458 | 0 | 0 |
| Riverside | 5 | 4,049 | 0 | 0 |
| Merced | 3 | 2,586 | 0 | 0 |
| Kings | 2 | 820 | 0 | 0 |
| Santa Clara | 2 | 1,327 | 0 | 0 |
| Solano | 2 | 690 | 0 | 0 |
| Stanislaus | 2 | 1,150 | 0 | 0 |
| Tulare | 2 | 1,555 | 0 | 0 |
| Butte | 1 | 208 | 0 | 0 |
| Humboldt | 1 | 310 | 0 | 0 |
| Imperial | 1 | 431 | 0 | 0 |
| Madera | 1 | 685 | 0 | 0 |
| San Mateo | 1 | 334 | 0 | 0 |
| Santa Barbara | 1 | 706 | 0 | 0 |
| Total | 427 | 238,861 | 110 | 43,787 |
Sources: Environmental Working Group, from state and federal census data.
