Wastewater: The Best Hidden Energy Source You’ve Never Heard Of


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Health Risks of Asphalt Exposure

Asphalt contains many known toxins, so we should be aware of the risks to our health and our environment.

Studies have shown: “Road dust and other erosion fractions originating from slowly wearing-away asphalt roadways are considered one potential source of PAHs in the sediments of urban rivers and bays” and, “Asphalt in rivers and other natural waters may also slowly leach harmful compounds into the water.”

Asphalt paving chemicals that are known to be harmful may include:

  1. benzene (CAS number 71-43-2)
  2. ethylbenzene (CAS number 100-41-4)
  3. n-hexane (CAS number 110-54-3)
  4. hydrochloric acid (CAS number 7647-01-0)
  5. methanol (CAS number 67-56-1)
  6. napthalene (CAS number 91-20-3)
  7. phenanthrene (CAS number 85-01-8)
  8. 1,2,4-trimethyl benzene (CAS number 95-63-6)
  9. toluene (CAS number 108-88-3)
  10. xylene – mixed isomers (CAS number 1330-20-7)

The following chemicals are also found at SIC Code 2951 (Asphalt Paving Mixtures and Blocks) facilities but cannot be properly identified because they do not have CAS numbers:

  • Polycyclic aromatic compounds

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Is Your Asphalt Driveway Toxic?

A troubling new report you need to see

Your driveway should feel like a safe haven. It’s a place where kids turn asphalt into a canvas for chalk-drawn sketches, the site of family games of hopscotch and hoops. But a first-of-its-kind risk assessment found a concerning connection between a popular type of asphalt sealant and an increased risk of cancer.

Is Your Driveway Toxic?

A troubling new report you need to see

Source: www.prevention.com/health/healthy-living/chemicals-tar-sealants-associated-increased-cancer-risk

The World’s Disappearing Sand

The World’s Disappearing Sand

MOST Westerners facing criminal charges in Cambodia would be thanking their lucky stars at finding themselves safe in another country. But Alejandro Gonzalez-Davidson, who is half British and half Spanish, is pleading with the Phnom Penh government to allow him back to stand trial along with three Cambodian colleagues. They’ve been charged, essentially, with interfering with the harvesting of one of the 21st century’s most valuable resources: sand.

Read full Article on New York Times website:

Environmental Health

Environmental Health

The U.S. Geological Survey (USGS) Environmental Health Mission Area works to safeguard the health of humans and other organisms, by leading research to understand and minimize exposures to chemical and microbial hazards in the environment. Key to solving complex problems at the intersection of health and environment is the USGS’s ability to integrate expertise from across all of its Mission Areas, and to collaborate successfully with health scientists from external organizations to help understand potential human health threats.



What is Glyphosate?

What is Glyphosate?

Glyphosate (tradenames include Roundup©, Touchdown©, Rodeo©, and others) is an organic solid of odorless white crystals. It is a non-selective herbicide used on many food and non-food crops as well as non-crop areas such as roadsides. When applied at lower rates, it serves as a plant growth regulator. The most common uses include control of broadleaf weeds and grasses in: hay/pasture, soybeans, field corn; ornamentals, lawns, turf, forest plantings, greenhouses, rights-of-way. Glyphosate is currently the world’s best selling herbicide, used in more than 90 countries and on more than 150 crops. Glyphosate use in agriculture has tripled since 1997, largely due to the increasing popularity of Roundup Ready® crops (including corn and soybeans), which have been genetically modified to tolerate glyphosate. The U.S. Environmental Protection Agency has set a drinking water Maximum Contaminant Level (MCL) of 700 micrograms per liter for glyphosate.


Greenhouse gases overview

Greenhouse gases trap heat and make the planet warmer. Human activities are responsible for almost all of the increase in greenhouse gases in the atmosphere over the last 150 years. The largest source of greenhouse gas emissions from human activities in the United States is from burning fossil fuels for electricity, heat, and transportation.

EPA tracks total U.S. emissions by publishing the Inventory of U.S. Greenhouse Gas Emissions and Sinks. This annual report estimates the total national greenhouse gas emissions and removals associated with human activities across the United States.