Elwood P C
Br Med J (Clin Res Ed). 1983 May 14;286(6377):1553-5. doi: 10.1136/bmj.286.6377.1553.
Blood lead concentrations, estimated in epidemiological surveys of adult women in Wales, have shown a fall of over 30% since 1972. During the same period the amount of lead in petrol has changed little but general traffic flow has steadily increased; there has been no change in the amount of lead in water.
在威尔士成年女性的流行病学调查中估算的血铅浓度显示,自1972年以来下降了超过30%。在同一时期,汽油中的铅含量变化不大,但总体交通流量稳步增加;水中的铅含量没有变化。