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Dec
7
2009
Alberta’s oil sands industry may threaten fish
Billig kaufen viagra, Development of oil sands in Alberta is causing contaminants to be released into a nearby river and tributaries, posing risks to the area’s fish, scientists say in the Proceedings of the National Academy of Sciences.
The team monitored levels of molecules called polycyclic aromatic compounds (PAC) at sites along the Athabasca River and its tributaries. Tributary sites upstream of oil sands facilities contained 0.009 micrograms per liter of dissolved PAC, viagra sales online, Soma cialis viagra, but average downstream concentrations reached 0.202 micrograms per liter in summer. A similar pattern was found in the Athabasca, buy viagra online without prescription, Si tomamos viagra se puede volver mas viejo, where sites downstream of new facilities had summer PAC levels more than twice as high as upstream sites.
PAC concentrations detected at stream mouths are high enough to harm fish embryos, the authors say, where can I buy viagra cialis levitra in canada. Levitra vs viagra, Nineteen of the area’s 24 fish species spawn close to the time when PAC levels reach their annual peak, potentially increasing the risk of toxic effects, how to get viagra in valencia, spain. Viagra's alternate brands, Overall, the results suggest that “the oil sands industry is a far greater source of regional PAC contamination than previously realized, inter net viagra blog, Getting arrested for buying viagra?, ” the team writes. – Roberta Kwok
Source: Kelly, E., viagra online best prices, Canada viagra overnight delivery, Short, J., GNC viagra, Buying viagra from india, Schindler, D., thiland viagra, Hodson, P., Ma, M., Kwan, A., & Fortin, B. (2009). Oil sands development contributes polycyclic aromatic compounds to the Athabasca River and its tributaries Proceedings of the National Academy of Sciences DOI: 10.1073/pnas.0912050106
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