Daily Archives: August 11, 2018

Emerging contaminants in the Jilin Songhua River (Northeast China)

He S, Dong D, Zhang X, Sun C, Wang C, Hua X, Zhang L, Guo Z. Occurrence and ecological risk assessment of 22 emerging contaminants in the Jilin Songhua River (Northeast China). Environmental science and pollution research international. 2018 Jun 8. doi: 10.1007/s11356-018-2459-3.

Rivers may receive pharmaceuticals, personal care products, and environment estrogens, which are emerging concerns, from various sources. Understanding the fate of these emerging contaminants (ECs) from the sources to their receiving river is important for assessing their ecosystem risk. Here, the occurrence, seasonal variation, spatial distribution, and ecological risk of 22 ECs in water and sediments from the Jilin Songhua River, as well as in the effluents from the riverside Jilin wastewater treatment plant (WWTP) were investigated. Results indicated that estriol with the highest median concentration of 21.5 ng L-1 in the river water and with the highest median concentration of 481.5 ng g-1 in the sediments, and methylparaben with the highest concentration of 29.6 ± 2.9 ng L-1 in the WWTP effluents were the predominant contaminants. The total concentration of ECs in the river water in the dry season was about 1.5 times higher than that in the wet season. The concentrations of these ECs close to the contaminated tributary and the WWTP were relatively high. Risk assessment showed that the maximum risk quotient value of estrone was 1.07 in the river water and estriol was 2.10 in the effluents. In addition, erythromycin posed generally medium risk in the river water and WWTP effluents. It should be paid attention to the prior control of the three contaminants in the river region.

Mis-information campaign about California wildfires

“With wildfires engulfing over 620,000 acres of California, there’s been a concerted media campaign to single out man-made global warming as the primary force behind the deadly blazes. But that’s not what the data suggests, according to University of Washington climate scientist Cliff Mass.”

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Wind energy is not a sustainable technology

American Electric Power Co. said Friday that it is scrapping plans to develop one of the largest wind farms in the U.S., a day after the project was rejected by Texas regulators. click here

Wildfires are in decline globally

“As usual with climate fear articles like this one in the L. A. Times the scientific reality present a far different picture. The latest scientific study completed by the Royal Society concludes that global wildfires are in decline.” click here