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Subpart 257-9: Ambient Air Quality Standard-Beryllium

(Statutory Authority: Environmental Conservation Law, § 15)

[Filed 4/28/72. Effective 5/1/72.]

[This is page 1 of 1 of this Subpart. A complete list of Subparts in this regulation appears in the Chapter 3 contents page. A list of sections in this Subpart appears below.]

For administrative information about this posting, contact: Division of Air Resources. The Bureau of Air Quality Planning at (518) 402-8396 or the Bureau of Stationary Sources at (518) 402-8403 is the contact for technical questions pertaining to this rule.



§257-9.1 Definition

For the purpose of this Subpart, the term beryllium shall include metallic beryllium and all beryllium compounds that may test as beryllium by the acceptable analytical method.

§257-9.2 Objective

Beryllium is extremely toxic in most of its physical and chemical forms, and can result in acute respiratory and skin problems or chronic beryllium disease. While industrial hygiene safety procedures now in effect have minimized the potential for acute effects, long term exposure to relatively low level ambient air concentrations that might occur in proximity to industrial plants still pose a potential for chronic beryllium disease. Compliance with the proposed standard should preclude such effect.

§257-9.3 Standard

Applicable in all levels during any month, the average concentration of beryllium shall not exceed 0.01 µg/m3.

§257-9.4 Measurement

Beryllium in air is sampled by filtering through a cellulose or membrane filter at a rate and for a time necessary to meet detection limits. Following acid digestion of the filter, analysis is made for beryllium with the atomic absorption spectrophotometer using an acetylene nitrous oxide flame.