The Hartrce-i:ock calculations and the SCF Xa scattered-wave method using overlapping spheres predict B different ordering of the ionization potentials of formaldehyde. To clarify the problem a Green's function approach includiq many-body effects is used. The caiculatcd ionization potentiais as wel
Controversy in the regulation of formaldehyde
β Scribed by Philip J. Landrigan; Frederica P. Perera
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 175 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0271-3586
No coin nor oath required. For personal study only.
β¦ Synopsis
Controversy in the Regulation of Formaldehyde
In December 1987, the U.S. Occupational Safety and Health Administration (OSHA) reduced the standard for occupational exposure to formaldehyde from 3 parts per million (ppm), averaged over an 8-hour work day to 1 ppm [OSHA, 19871. This is the latest but clearly not the last chapter in the lengthy saga of formaldehyde, a chemical of public health significance in its own right and a lightning rod for debate over general principles of carcinogen risk assessment and cancer policy [Perera and Petito, 19821. The regulation comes 8 years after the release of preliminary data by the Chemical Industry Institute of Toxicology showing that animals exposed to formaldehyde vapor developed cancer of the nasal sinuses [Swenberg et al., 19801; those data were corroborated by findings from an animal toxicology study conducted at New York University [Albert et al., 19821. The new standard comes 6 years after
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## Abstract There are two values, β26.0 and β27.7 kcalβmol^β1^, that are routinely reported in literature evaluations for the standard enthalpy of formation, Ξ~f~__H__Β°~298~, of formaldehyde (CH~2~ο£ΎO), where error limits are less than the difference in values. In this study, we summarize the report
## MEDICAL LITERATURE Controversy, or the expression of opposing or conflicting viewpoints, seems to have become a well-established facet of scientific communication. Therefore, it seems pointless to discuss whether controversy has a place in the exchange of scientific information and ideas, or wh
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