US Clean Air Act associated with increased average lifetime earnings of $21,400
Reduction in in utero airborne lead exposure linked to improved socio-economic outcomes relating to disability, employment and lifetime earnings
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THE NEW WORK USED CONFIDENTIAL SOCIAL SECURITY AND US CENSUS BUREAU RECORDS TO ANALYZE THE LONG-TERM EFFECTS OF IMPROVEMENT IN THE US AIR LEAD CONCENTRATION ON ADULT SOCIO-ECONOMIC OUTCOMES INCLUDING EARNINGS, DISABILITY, TIME WORKING, EDUCATION AND PUBLIC ASSISTANCE.
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Early exposure to airborne lead has long-term outcomes on employment, disability and lifetime earnings, and the passage of the US Clean Air Act in 1970 has had an estimated US $4.23 trillion in benefits through its impact on airborne lead levels and the resulting increase in labor market outcomes, according to a new study published November 15 in the open-access journal PLOS ONE by Spencer Banzhaf of North Carolina State University and Melissa Ruby Banzhaf of the US Census Bureau.
Even at low levels, lead exposure in utero and young childhood has been shown to reduce cognitive ability and increase behavioral problems and risky behavior throughout life. In the new work, the Banzhafs used confidential Social Security and US Census Bureau records to analyze the long-term effects of improvement in the US air lead concentration on adult socio-economic outcomes including earnings, disability, time working, education and public assistance.
The study found that the decrease in air lead between 1975 and 1985, resulting from the passage of the Clean Air Act, is associated with an increase in lifetime earnings of 3.5% or $21,400 for the average US worker, with greater impacts on women than men. Additionally, greater exposure to air lead in utero is associated with an increase in adult disability, an increase in receiving public assistance and a decrease in employment. Overall, the total earnings impact of the Clean Air Act totals US $4.23 trillion, with a benefit of about $252 billion in 2020 alone.
The authors conclude that there are long-term links among air lead exposure, cognitive development and socio-economic outcomes. The Clean Air Act’s lead phase out is still returning a national dividend of more than 1% each year, they report.
The authors add: “These results indicate that the phaseout of leaded gasoline in the 1970s and 1980s is continuing to pay long-term dividends. They also highlight the importance of continued efforts to identify and abate lead in drinking water and old paint.”
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In your coverage please use this URL to provide access to the freely available article in PLOS ONE: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0293443
Citation: Banzhaf HS, Banzhaf MR (2023) Impact of in utero airborne lead exposure on long-run adult socio-economic outcomes: A population analysis using U.S. survey and administrative data. PLoS ONE 18(11): e0293443. https://doi.org/10.1371/journal.pone.0293443
Author Countries: USA
Funding: HSB received funding from Georgia State University through the Atlanta Census RDC Seed Grant Program. There was no grant number associated with this award. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
JOURNAL
PLoS ONE
METHOD OF RESEARCH
Observational study
SUBJECT OF RESEARCH
People
ARTICLE TITLE
Impact of in utero airborne lead exposure on long-run adult socio-economic outcomes: A population analysis using U.S. survey and administrative data
ARTICLE PUBLICATION DATE
22-Nov-2023
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