Acid precipitation - Environmental Science & Technology (ACS

May 30, 2012 - William G. Hime. Environ. Sci. Technol. , 1982, 16 (1), pp 6A–6A. DOI: 10.1021/es00095a707. Publication Date: January 1982. Copyright...
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ES&T LETTERS

Correction In the "Destroying hazardous wastes" article (ES&T, Vol. 15, No. 11, 1981, p. 1268) David Wimert of the ACS Department of Public Affairs assisted with the survey. His name was misspelled in the article.

Acid precipitation Dear Sir: In reference to the article "Acid precipitation" (ES&T, Vol. 15, No. 10, p. 1119), I find it incomprehensible that basic (high pH) air pollutants aren't considered. Since the 1960s and 1970s, when the EPA forced cement manufacturing companies to install dust collectors, the air has been "cleaned" of 10 million

tons/y of pollutants that formerly neutralized acidic substances in the air, on the ground, or in our lakes. The fact that the lowest pH regions in the country are just east of the locations of highest concentration of cement plants suggests an immediate remedy, especially since no one has ever shown cement plant emissions to be anything but a nuisance. William G. Hime Vice President Erlin, Hime Associates, Inc. 811 Skokie Boulevard Northbrook, Ill. 60062

Raymond C. Loehr Liberty Hyde Bailey Professor of Engineering

FOR THE 13 th CONSECUTIVE YEAR...

1982 STACK

SAMPLING SEMINARS

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® CIRCLE 11 ON READER SERVICE CARD Environ. Sci. Technol., Vol. 16, No. 1, 1982

Lewis M. Naylor, Ph.D. Research Associate Cornell University Ithaca, N.Y. 14853

Dietary cadmium Dear Sir: We wish to acknowledge and clarify the following items related

COMPLIMENTARY SLIDE RULE NOMOGRAPH

6A

to our article titled "Increase in dietary cadmium as a result of application of sewage sludge to agricultural land" ( E S & T , Vol. 15, No. 8, 1981, pp. 881-886). 1. Reference 9 was an important key document used in preparing the summary review presented in the article. 2. Table 1 in the article was taken from reference 9 and should have been so noted.