From Steel to Sustainability: Addressing the Environmental Legacy of Industrial Pollution Through Green Infrastructure and Public Policy in Pittsburgh’s Three Rivers

Faculty Mentor

E.D. Dascher

Presentation Type

Poster

Start Date

4-14-2026 9:00 AM

End Date

4-14-2026 11:00 AM

Location

PUB NCR

Primary Discipline of Presentation

Urban and Regional Planning

Abstract

For several decades, Pittsburgh, Pennsylvania, served as the leading steel manufacturing center in the United States. Although large-scale steel production occurred for only about seventy years, the legacy of steel manufacturing, coal mining, and historically weak environmental regulations has left lasting environmental impacts on the region’s waterways. Pollution in the Allegheny River, Monongahela River, and Ohio River has contributed to degraded water quality, reduced flood mitigation capacity, and increased vulnerability to landslides in surrounding communities. Declining water quality poses public health concerns for residents who rely on these rivers as drinking water sources. Monitoring of municipal water supplies has detected harmful contaminants, including bacteria and heavy metals. For example, testing in 2021 identified the presence of cadmium in the Monongahela River, a toxic metal associated with severe health effects such as organ damage and bone demineralization. In addition to environmental and health risks, recurrent flooding creates significant economic challenges and affects property values, while landslides and sinkholes raise concerns for infrastructure stability and community safety. Addressing these interconnected issues requires substantial infrastructure investment and environmental restoration. Pittsburgh’s vacant and underutilized properties present opportunities to implement green infrastructure, including water storage systems, filtration installations, and expanded green spaces that can improve storm water management and river health. The passage of the Clean Water Act in the 1970s initiated the recovery of Pittsburgh’s rivers; notably, the Monongahela River had previously been considered ecologically degraded before regulatory reforms required mine cleanup and water quality protections. In 2025, Pittsburgh voters chose to maintain public ownership of the city’s water and sewer systems. This decision provides a foundation for further infrastructure investment aimed at improving water quality and strengthening the long-term health of the region’s rivers.

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Apr 14th, 9:00 AM Apr 14th, 11:00 AM

From Steel to Sustainability: Addressing the Environmental Legacy of Industrial Pollution Through Green Infrastructure and Public Policy in Pittsburgh’s Three Rivers

PUB NCR

For several decades, Pittsburgh, Pennsylvania, served as the leading steel manufacturing center in the United States. Although large-scale steel production occurred for only about seventy years, the legacy of steel manufacturing, coal mining, and historically weak environmental regulations has left lasting environmental impacts on the region’s waterways. Pollution in the Allegheny River, Monongahela River, and Ohio River has contributed to degraded water quality, reduced flood mitigation capacity, and increased vulnerability to landslides in surrounding communities. Declining water quality poses public health concerns for residents who rely on these rivers as drinking water sources. Monitoring of municipal water supplies has detected harmful contaminants, including bacteria and heavy metals. For example, testing in 2021 identified the presence of cadmium in the Monongahela River, a toxic metal associated with severe health effects such as organ damage and bone demineralization. In addition to environmental and health risks, recurrent flooding creates significant economic challenges and affects property values, while landslides and sinkholes raise concerns for infrastructure stability and community safety. Addressing these interconnected issues requires substantial infrastructure investment and environmental restoration. Pittsburgh’s vacant and underutilized properties present opportunities to implement green infrastructure, including water storage systems, filtration installations, and expanded green spaces that can improve storm water management and river health. The passage of the Clean Water Act in the 1970s initiated the recovery of Pittsburgh’s rivers; notably, the Monongahela River had previously been considered ecologically degraded before regulatory reforms required mine cleanup and water quality protections. In 2025, Pittsburgh voters chose to maintain public ownership of the city’s water and sewer systems. This decision provides a foundation for further infrastructure investment aimed at improving water quality and strengthening the long-term health of the region’s rivers.