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Science 8 September 1972:
Vol. 177. no. 4052, pp. 882 - 883
DOI: 10.1126/science.177.4052.882
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Articles

Turbidity Trends at Tucson, Arizona

Karen Heidel 1

1 Institute of Atmospheric Physics, University of Arizona, Tucson 85721

Variations in atmospheric turbidity at Tucson, Arizona, since 1956 are similar to those at Mauna Loa in Hawaii, especially before January 1970. The turbidity at both locations increased markedly in 1963 after the Bali eruption. Since January 1970, the turbidity has returned to its pre-1963 level at Mauna Loa, but has remained relatively high at Tucson.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)