References
- Day , J. P. , Hart , M. and Robinson , M. S. 1975 . Nature , 253 : 343 – 5 .
- Turner , A. C. 1971 . Warren Spring Laboratory Report LR 189 (AP) , Department of Trade and Industry .
- Barltrop , D. , Strehlow , C. D. , Thornton , I and Webb , J. S. 1975 . Postgrad. Med. J. , 51 : 801 – 4 .
- April 1973 . Public Safety ‐ Lead., Which? , April , 104 – 111 . London : Consumer's Association .
- Harrison , R. M. , Perry , R. and Slater , D. H. 1974 . Atmos. Environ. , 8 : 1187 – 94 .
- Colwill , D. A. and Hickman , A. J. 1973 . Transport and Road Research Laboratory Report LR 545 , Department of the Environment .
- Purdue , L. J. , Enrione , R. E. , Thompson , R. J. and Bonfield , B. A. 1973 . Analyt. Chem. , 45 : 527 – 30 .
- Edwards , H. W. and Rosenvold , R. J. 1974 . Proceedings, Second Annual NSF‐RANN Trace Contaminants Conference . August 29–31 1974 , Asilomar, Pacific Grove, California. pp. 59 – 63 .
- Shapiro , H. and Frey , F. W. 1968 . The Organic Compounds of Lead , New York : Wiley .
- Fishbein , L. 1974 . Sci. Tot. Environ. , 2 : 341 – 71 .
- Noden, F. G., Private Communication.