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Foram feitas determinações de chumbo e atividade da delta-ALAD no sangue de 3 amostras populacionais da Grande São Paulo (Brasil). Um grupo (A) de área de escassa exposição ambiental ao chumbo, um grupo (B) exposto principalmente a fontes móveis de emissão de chumbo e um grupo (C) vizinho a uma indústria de recuperação de chumbo. Cada grupo foi subdividido conforme sexo e hábito de fumar. A plumbemia do grupo C (20,5 µg/100 ml) foi significantemente maior que as dos grupos A (11,2 µg/100 ml) e B (12,4 µg/100 ml). As correlações entre plumbemia e atividade da delta-ALAD, plumbemia e sexo e plumbemia e hábito de fumar foram investigadas. Blood lead levels (BPb) and delta-aminolevulinic acid dehydratase activity (delta-ALAD) were determined in three population groups in Greater S. Paulo (Brazil). The first group (A) had low environmental exposure to lead from mobile and stationary sources; the second (B) was exposed to mobile lead emitting sources; while the third gruop (C) was formed by people living near a lead recuperation plant. Each group was divided according to sex and smoking habits. The BPb of group C was significantly higher than that of groups A and B. Correlations between BPb and delta-ALAD, BPb and sex, and BPb and smoking habits were determined

Níveis de chumbo e atividade da desidratase do ácido delta-aminolevulínico (delta-ALAD) no sangue da população da Grande São Paulo, Brasil