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Erratum: Vol. 40, No. 36

In the article "Chlorine Gas Toxicity from Mixture of Bleach and Other Cleaning Products--California," the threshold limit value (TLV) for chlorine stated in the first sentence of the second paragraph of the Editorial Note on page 627 was incorrectly given as 1 part per million (ppm). The correct TLV is 0.5 ppm, but a short-term exposure limit of 1 ppm was established for exposures not exceeding 15 minutes (1).


  1. American Conference of Governmental Industrial Hygienists. Threshold limit values and biological exposure indices for 1989-1990. Cincinnati, Ohio: American Conference of Governmental Industrial Hygienists, 1989:16.

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