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8 Recommendations
Pages 227-232

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From page 227...
... The possible carcinogenicity of arsenic remains controversial, and it is urged that more studies be done to settle this issue. A group of experts should be convened to address this question specifically and to recommend and oversee studies in man and experimental animals designed to resolve the enigma.
From page 228...
... Recent studies using sensitive indicators of biochemical toxicity, such as alterations in enzyme activity, or physiologic criteria of poisoning, such as impaired reproductive performance, have suggested subtle changes in association with exposures of arsenic that were previously thought to be innocuous. How pertinent such results are to environmental problems is not certain, but at least the preliminary experiments should be confirmed or refuted and an attempt made to put such experiments into perspective.
From page 229...
... Recent evidence has also suggested that the equilibrium vapor pressure of some arsenic compounds (e.g., arsenic trioxides is great enough for appreciable losses to occur as a result of sublimation when dust particles are collected on high-volume air samplers. Sublimation losses may also occur during sample storage or drying.
From page 230...
... Loss of these pesticides or major price adjustments due to low availability of starting materials (arsenic trioxides could have a major economic impact on American agriculture. It is urgent to assess the domestic and foreign consequences of the loss of these compounds.
From page 231...
... The exact annual production, distribution, imports, exports, and inventories of arsenical pesticides are unknown. Furthermore, it is impossible with current estimates to predict market trends as influenced by shortages in petroleum-based feedstocks, development of new pesticides, or any other economic change.


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