Normally, the lead coordinating role is assumed by the department which is respon sible for manufacture, use, or processing of the substance concerned.

The^ toxic effect of silica on macrophages is documented, and may well lead to the release of factors respon for stimulation in fibrosis.

Charg ing of storage batteries of die lead-acid type produces stabme from the antimony which is in die lead grids as a hardening alloy This occurs mostly as the battery is overcharged and in increasing amounts as the battery grows older Shbme is also apt to be formed when water is apphed to the dross bom alumi num refining of metals.

-S'ft^^Sh^nvjrf'rWiliiSms"House' F psmxxnadt oh a perfcctiy balance Oarhbnat^of Lead, Sulphate of Len WibWh mii^rig.jth fi?

A ll o th e rs net 30 days JO R /w dh/hcg C hicago, IL on 2500 lb bundles 100 lb p ig bars . 097 lb s as is 10 'LEAD CORRODING GRADE o s t o & o O c * o uo w.

Finally, the speed with which these things are accomplished and medical judgments are possible leads me to wonder about the degree of urgency that the government feels under in order to clarify the medical consequences of exposure to vinyl chloride.

Plant Engineers' Conference Page 30 As we mentioned before, in setting up a program of health control, the sources of lead and zinc contamination are usually dealth with first.

Attractive displays can draw atten tion and lead to product inspection and selection.

Where a published article or statement falsely describes an alleged lead hazard, I can come back at the author, and I do.

In fact, the Bonneville condensers, hy virtue of their special design, can on short notice deliver 200 percent of their 15 psi leading kilovar rating--a momentary ca pacity of 120,000 kva.

Fog removal Hot water tanks are used in various in dustries and operations, such as foundries, veneer mills, plating, metal cleaning, and the like Sometimes the steam they release to the room leads to excessive moisture condensation, lowered viability, or discom fort Particularly is this true in winter weather, and at extensive vat operations See References at end of this chapter Dept of National Health and Welfare, Michigan Health Department, and Mdton Sheinbaum 28-44

From here, the process extends outward to involve the sur rounding alveoli, leading to diffuse alveolar wall thickening, with peribronchiolar and perivascu lar fibrosis (116).

Dear Bob*- I talked with Howard Gehra&nn and Joe Stchar about the proposed changes in record card for tha lead Examination, and the possibility of carrying a running record on tha entire group.

Pb Pound 0Qp mg* Total lead found (oorrocfcod for reagents) = Q.Lj, rsg. oorrosponding to 11*1', mg.

His lead operator D.