| lead level less than 1 | 0.68 | 0.2 | 4925 | 22 | 99 |
| lead level less than 5 | 0.97 | 0.3 | 6210 | 22 | 76 |
| lead at any level | 0.16 | 0.1 | 9142 | 17 | 17 |
| no safe level of lead | 0.25 | 0.8 | 4788 | 21 | 59 |
| what level of lead is acceptable | 0.52 | 0.7 | 7587 | 32 | 73 |
| what is a good lead level | 1.31 | 1 | 5845 | 25 | 54 |
| acceptable levels of lead | 0.5 | 1 | 1804 | 25 | 68 |
| lowest acceptable amount of lead | 1.95 | 0.3 | 7203 | 32 | 34 |
| lead level of 3.5 | 1.22 | 0.4 | 7632 | 17 | 44 |
| what is a normal lead level | 0.83 | 0.5 | 2498 | 27 | 23 |
| high level of lead | 1.88 | 0.6 | 7960 | 18 | 33 |
| lead level of 15 | 1.96 | 0.6 | 6697 | 16 | 79 |
| what level of lead is dangerous | 1.21 | 0.9 | 6724 | 31 | 56 |
| acceptable lead levels in blood | 0.54 | 0.2 | 4202 | 31 | 30 |
| how to test lead levels | 0.29 | 0.3 | 3994 | 23 | 42 |
| safe amount of lead | 0.18 | 0.4 | 9443 | 19 | 92 |
