Recently in Air Quality for Sustainable Communities Category

Wading through the sources of lake contamination

Contamination of urban lakes and streams by polycyclic aromatic hydrocarbons (PAHs) is widespread and has been increasing over the last 40 years in the United States.

PAHs are Toxic

These PAHs can be toxic to bottom-dwelling organisms, can cause tumors in fish, and several are believed to cause cancer in humans. 

In this study, researchers examined five sources of PAHs in 40 urban lakes from across the United States, including coal-tar-based pavement sealcoat, coal combustion, oil combustion, vehicle emissions and wood combustion.

Sealcoat Contributes to PAH Contamination

Of the five sources studied, sealcoat was the strongest contributor to PAH contamination in lake sediment. This research can help those trying to reduce pollution levels in the urban environment by providing them with a better understanding of PAH sources. 

This study, "Sources of PAHs to urban lakes in the United States," was conducted by USGS at the Society of Environmental Toxicology and Chemist  

African dust is making it across the ocean.

Increasing quantities of African dust have blown across the Atlantic Ocean to the Caribbean and Americas over the past few decades. During that time, the dust's composition has changed.

In this study, African dust air masses in Africa and the Caribbean were analyzed for persistent organic contaminants and metals.  These potentially toxic contaminants can originate from the burning of plastics, biomass and waste; widespread use of pesticides, plastics, and pharmaceuticals; and increased industrialization.

Multiple pesticides and other contaminants, including carcinogens, suppressors of immune systems, disruptors of endocrine systems, and nervous system or liver toxins were identified from all sample sites.  All are known to persist in the environment, accumulate in organisms, and are toxic at very low concentrations.

This study, "Chasing clouds of dust: transoceanic transport of synthetic organic pollutants and trace metals with African dust," is from USGS at the Society of Environmental Toxicology and Chemistry. 

Sustainable South Bronx is fighting for "THE PROMISE OF AMERICA" by using the green economy to help people grow out of poverty and the dirty community that results from environmentally degrading industry traditions. Restoring the environment can also restore the people who live there because we are PART of the ecosystem. Unemployment, asthma, crises...they have personal and financial stake in the environment.  Their BEST program  trains youth for ecological restoration: urban forestry management, green roof installation, brown field restoration, etc.

Environmental Justice

through innovative, economically sustainable projects

that are informed by community needs.

VIDEO with Majora Carter, founder

 

Founded in 2001 by life-long South Bronx resident, Dr. Majora Carter, SSBx also addresses land-use, energy, transportation, water & waste policy, and education to advance the environmental and economic rebirth of the South Bronx, and inspire solutions in areas like it across the nation and around the world.

Watch video clips from the 2008 Aspen Environment Forum

http://www.aspenenvironment.org/live-from-the-forum