We analyzed the level of blood cadmium for 245 growing students(135 males and 110 females) aged 6 to 24 years who had not exposed to cadmium as the exposure index for cadmium in general population, and studied the reference value, sex- and age-
effect
for the blood cadmium, in additions relation with blood zinc. Blood cadmium and zinc determined using atomic absorption spectrophotometry by flameless method for cadmium and flame method for zinc.
The mean value of blood cadmium was 0.92㎍/ℓin arithmetic mean(AM), 0.72㎍/ℓin geometric mean(GM), and blood zinc was 5.07mg/ℓin AM. 5.01mg/ℓin GM. Age-adjusted blood cadmium was not significant between male(0.93㎍/ℓin AM, 0.74㎍/ℓin GM)
and
female(0.92㎍/ℓin AM, 0.69㎍/ℓin GM), and not observed a difference by sex in blood zinc(male : 5.07mg/ℓin AM, 5.00mg/ℓin GM : female : 5.07 mg/ℓin AM, 5.02 mg/ℓin GM). Blood cadmium and zinc were well correlated with age, and had
increasing
tendency by age group. The positive relation was observed between the level of cadmium and zinc in blood. In summary, these results suggest that blood cadmium of growing students in general population is valuable as an one of indices for body
burden of
cadmium by pollution.
|