Tar Sands

In Glogpedia

by MrReGlog
Last updated 7 years ago

Discipline:
Science
Subject:
Ecology

Toggle fullscreen Print glog
Tar Sands

Health and theTar Sands

- Oil shales and tar sands contain large amounts of petroleum

- Oil shale is a fine-grained sedimentary rock rich in solid organic material called Kerogen

- Tar sands are composed of sand and shale particles coated with bitumen

- Bitumen is a viscous mixture of long-chain hydrocarbons

- Rare forms of cancer downstream from tar sands production

Health Issues

Information About Tar Sands

Environmental Issues

- Typical plants produce 125, 000 bbl of oil per day which creates about 15 million m3 of toxic sludge

- 5000 tons of greenhouse gases are emitted

- Tar sands consume and contaminate billions of litres of water per year

- Shallow tar sands are excavated and mixed with hot water and steam to extract bitumen

- Deeper deposits; superheated steam is injected to melt bitumen

- When melted bitumen can be pumped to the surface like liquid crude

- Surface mining in Canada could destroy millions of hectares of boreal forest

- Kerogen when heated to 480 degrees celcius (900 degrees fahrenheit) it liquifies and can be extracted from stone

- Oil shale beds up to 600m (1800 ft) thick

- If shale deposits could be extracted for a reasonable price with acceptable environmental impacts it could yield the quivalent of several trillion barrels of oil

- Mining shale causes many problems; it's expensive, requires vast quantities of water, has a high potential for air and water pollution and produces enormous quantities of waste

- Downstream from tar sands: pollution of fresh water leading to poisoned diets (fish, moose and plant toxicity)

- Tar sands operations also emit nitrogen oxide, sulfer oxide, particulate matter and volatile substances

- Particulate matter has been linked to diseases such as asthma, bronchitis, emphysema and various forms of heart disease.

- Breathing in nitrogen oxide and sulphur oxide often leads to respiratory problems

- Volatile organic compounds can cause even more serious problems, from cancer to brain damage

- When human beings eat the animals or fish that have ingested polluted plants or water they are also eating the chemicals consumed by the animal

- Reports have been made of mutations in animals and fish in ecosystems downstream from tar sands projects

- Communities that are adjacent to tar sands (oil refineries) are faced with increased carbon dioxide emissions, and increased exposure to heavy metals, and sulfurs.


Tags

Comments

    There are no comments for this Glog.