1960 Carol Angle and Matilda McIntire tie Occupational Lead to Children

By the mid-20th century, Omaha’s understanding of lead exposure shifted as medical workers began to recognize that hazards extended beyond factory walls. This change developed through the work of Dr. Carol Remmer Angle, a pediatrician and toxicologist at the University of Nebraska Medical Center, whose involvement with lead poisoning began in the late 1960s while directing the Nebraska Regional Poison Center. One early case involved a family living near the riverfront, where the father worked at a battery reclamation plant. He brought home cardboard battery casings and burned them inside the house, releasing lead dust into the living space. A child from the household was admitted with seizures and hydrocephalus, and the diagnosis of lead poisoning was confirmed several days later when laboratory tests showed abnormal red cells. When the entire family was examined, all members showed signs of exposure. This case led Angle to examine how lead from industrial activity entered homes and affected families.

Public attention to Omaha’s lead problem grew through the early 1970s as the city began to see how widespread the contamination had become. In 1970, a newspaper investigation reported that Omaha had “more lead-dust fallout than any of 21 other Midwestern cities,” with the heaviest dust falling in neighborhoods closest to ASARCO and nearby battery plants. This helped push the city toward more organized testing. By 1973, Omaha officials applied for federal funding to test children in the areas identified as most at-risk: the districts near 30th Street and Cuming Street, and older housing blocks listed by the city as high-exposure zones. In 1975, Angle and McIntire mapped blood-lead levels and documented a clear “ridge of increased Pb-B,” meaning a continuous band of neighborhoods where children showed the highest blood-lead levels, especially in areas near major roads and industrial sites. 

As her work expanded, Angle worked closely with Dr. Matilda McIntire from the Douglas County Health Department. McIntire reported that residents living near the ASARCO smelter and nearby battery-recycling plants often complained about heavy emissions. Their findings showed that soil in industrial neighborhoods had extremely high lead levels, with one residential area recording “339 to 4792 µg/g,” the highest measurements in the study. Indoor dust from the same area also showed elevated readings, measuring “300 to 860 µg/g,” which confirmed that lead pollution had reached inside homes. An article from the same period explained how industrial work sites contributed to household exposure, stating that “young children of local lead-industry workers have higher levels of lead in their blood than non-workers’ youngsters” because dust was carried home from factories (OWH, 1978). These findings show that Omaha’s industrial lead pollution extended beyond the plant sites and affected surrounding neighborhoods and homes. 

Angle and McIntire sought access to the ASARCO plant. Entry was granted through the State Labor Department, allowing them to observe operations directly. Inside, they noted limited ventilation, open vats of molten lead, and protective equipment that was either inadequate or not consistently used. Workers frequently left the plant in contaminated clothing, allowing lead dust to spread into their homes and communities. These findings reframed Omaha’s lead problem from a localized medical concern to a widespread environmental issue. Angle and McIntire’s work showed that lead exposure did not remain contained within industrial facilities but extended into nearby homes, streets, and entire neighborhoods. Their research clarified the full scope of contamination and helped define lead poisoning as a preventable public health problem rather than an unavoidable result of industrial activity.

"Lead Dust in Omaha Is Worst in 22 Cities.” Omaha World-Herald, October 16, 1970.

“City to Apply for Funds to Test Children for Lead Poisoning.” Omaha World-Herald, May 13, 1973.

Angle, Carol R., and Matilda McIntire. “Blood Lead of Omaha School Children: Topographic Correlation with Industry, Traffic, and Housing.” 1975 study.

“Workers Carry Dust Home.” Omaha World-Herald, November 16, 1978.

“Lead Dust in Omaha Homes.” Omaha World-Herald, 1970s archival reporting.

Angle, Carol R., and Matilda S. McIntire. “Environmental Lead and Children: The Omaha Study.” Journal of Toxicology and Environmental Health, 1979.

UNMC Special Collections and Archives. (2021). Carol Angle Day 1 transcript. Preservica. https://unmc.access.preservica.com/uncategorized/IO_378d0811-e3fd-4636-87ce-b36217bf210d/