Lead exposure and lead poisoning in the Bell Telephone System

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The transcript of that entire meeting has been included here. Due to the size of the computer file the transcript has been broken into eight segments. Each segment may be downloaded. The segments may then be reassembled into a single document using available software, if desired. 

Health Practices Pamphlet No. 3, "Lead" (1942) 

NAS investigation of industrial uses of tin-free and low-tin solders (1944) 

As American factories churned out war material, the American Public Health Association’s Committee on Lead Poisoning, while faithfully sounding the alarm on the ongoing problem of occupational lead poisoning, had by 1943 already shifted support away from workers and towards management. Whether intended or not this change - made obvious by comparing the committee’s published guidance from that year with that from 1930 -  by the nation’s preeminent public health watchdog group, would have made any claim of disability from lead poisoning much harder to prove at a time when unprotected lead exposure was in sharp ascent.  

Concerns about lead poisoning's long term consequences, suspected but unproven in the middle of the last century and treated with derision and scorn in the 1943 document but with respect and caution in the 1930 document, have subsequently been shown to be valid. Read the American Public Health Association’s Committee on Lead Poisoning’s guidance from APHA LEAD Poisoning 1930  and APHA Occupational Lead Exposure and Lead Poisoning 1943.