Key points

• 1,692 blood lead tests (including 1,234 initial screenings and 458 follow-ups) were conducted on children aged 0 to 17 in Occitanie between 2015 and 2022, averaging 213 tests per year.

• 101 cases of childhood lead poisoning detected in Occitanie between 2015 and 2022, an average of 13 cases per year.

• Initial screening yield: 8% between 2015 and 2022.

• Significant disparities in screening rates between departments and a strong year-over-year impact of proactive screening initiatives: screening activity was concentrated in the Hérault department (36%), followed by the Pyrénées-Orientales (17.5%), then the Gard (15%), and Haute-Garonne (13.7%).