A Spatiotemporal Model for the Effects of Toxicants on Populations in a Polluted River

A laboratory river model for the study of self-purification inhibition in a stream containing toxic substances is presented. It enables an engineering - technological prediction of the impact of toxic substances or wastewaters on dissolved oxygen (DO) profile in an organically polluted river downstream from the point of entry of toxic effluent thus providing rapidly and inexpensively significant design information to an environmental scientist or engineer. The method was applied to the toxicity evaluation of wastewaters from electroplating industry. The effects of copper, cyanide (representing two significant constituents of this type of wastewaters) and wastewater from electroplating industry on the biodegradation of organic municipal pollution in receiving stream were evaluated experimentally.

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Application of an advanced spatiotemporal model for PM2.5 prediction in Jiangsu Province, China

Chemosphere ◽

10.1016/j.chemosphere.2019.125563 ◽

2020 ◽

Vol 246 ◽

pp. 125563 ◽

Cited By ~ 1

Author(s):

Ting Zhang ◽

Penghui Liu ◽

Xue Sun ◽

Can Zhang ◽

Meng Wang ◽

...

Keyword(s):

Jiangsu Province ◽

Spatiotemporal Model

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Nitrogen removal from polluted river water in a novel ditch–wetland–pond system

Ecological Engineering ◽

10.1016/j.ecoleng.2013.07.009 ◽

2013 ◽

Vol 60 ◽

pp. 135-139 ◽

Cited By ~ 10

Author(s):

Wenzhong Tang ◽

Wenqiang Zhang ◽

Yu Zhao ◽

Yuanyue Wang ◽

Baoqing Shan

Keyword(s):

River Water ◽

Nitrogen Removal ◽

Polluted River ◽

Pond System

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Forecasting tourism demand: Developing a general nesting spatiotemporal model

Annals of Tourism Research ◽

10.1016/j.annals.2021.103277 ◽

2021 ◽

Vol 90 ◽

pp. 103277

Author(s):

Xiaoying Jiao ◽

Jason Li Chen ◽

Gang Li

Keyword(s):

Tourism Demand ◽

Spatiotemporal Model

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Lagged recovery of fish spatial distributions following a cold-water perturbation

Scientific Reports ◽

10.1038/s41598-021-89066-x ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

M. D. Robertson ◽

J. Gao ◽

P. M. Regular ◽

M. J. Morgan ◽

F. Zhang

Keyword(s):

Water Temperature ◽

Species Distribution ◽

Environmental Conditions ◽

Cold Water ◽

Heat Waves ◽

Rapid Change ◽

Nonlinear Effects ◽

Spatial Distributions ◽

Spatiotemporal Model ◽

Yellowtail Flounder

AbstractAnomalous local temperature and extreme events (e.g. heat-waves) can cause rapid change and gradual recovery of local environmental conditions. However, few studies have tested whether species distribution can recover following returning environmental conditions. Here, we tested for change and recovery of the spatial distributions of two flatfish populations, American plaice (Hippoglossoides platessoides) and yellowtail flounder (Limanda ferruginea), in response to consecutive decreasing and increasing water temperature on the Grand Bank off Newfoundland, Canada from 1985 to 2018. Using a Vector Autoregressive Spatiotemporal model, we found the distributions of both species shifted southwards following a period when anomalous cold water covered the northern sections of the Grand Bank. After accounting for density-dependent effects, we observed that yellowtail flounder re-distributed northwards when water temperature returned and exceeded levels recorded before the cold period, while the spatial distribution of American plaice has not recovered. Our study demonstrates nonlinear effects of an environmental factor on species distribution, implying the possibility of irreversible (or hard-to-reverse) changes of species distribution following a rapid change and gradual recovery of environmental conditions.

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Status of multielement in water of the river Buriganga, Bangladesh: Aquatic chemistry of metal ions in polluted river water

Emerging Contaminants ◽

10.1016/j.emcon.2021.03.001 ◽

2021 ◽

Vol 7 ◽

pp. 99-115

Author(s):

Aklima Nargis ◽

Ahsan Habib ◽

Harun-Or-Rashid ◽

Halima Binte Harun ◽

Md Shafiqul Islam Sarker ◽

...

Keyword(s):

Metal Ions ◽

River Water ◽

Aquatic Chemistry ◽

Polluted River

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Large-scale hybrid accidental urban wetland for polluted river purification in northern China: Evidence and implications for urban river management

Environmental Technology & Innovation ◽

10.1016/j.eti.2021.101542 ◽

2021 ◽

Vol 22 ◽

pp. 101542 ◽

Cited By ~ 1

Author(s):

Mathieu Nsenga Kumwimba ◽

Xinzhu Li ◽

Wei wang ◽

L.H.D.K.U. De Silva ◽

Linlin Bao ◽

...

Keyword(s):

Large Scale ◽

Northern China ◽

River Management ◽

Urban River ◽

Polluted River ◽

Urban Wetland

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Yeasts isolated from the South Saskatchewan, a polluted river

Canadian Journal of Microbiology ◽

10.1139/m70-178 ◽

1970 ◽

Vol 16 (11) ◽

pp. 1051-1057 ◽

Cited By ~ 9

Author(s):

J. F. T. Spencer ◽

P. A. J. Gorin ◽

N. R. Gardner

Keyword(s):

Magnetic Resonance ◽

The South ◽

Polluted River ◽

Sewage System ◽

Minimum Numbers ◽

The City ◽

Magnetic Resonance Spectra

Minimum numbers of yeasts isolated from the Saskatchewan River in the summers of 1964 and 1965 ranged from 400 to 500 cells/liter upstream from the city of Saskatoon, to 4600 cells/liter immediately downstream. In the summer of 1968, a period of extremely low water, the counts were 150 cells/liter upstream from the city and 30 000 cells/liter downstream.Proton magnetic resonance spectra of the mannose-containing polysaccharides from representative cultures of the different species isolated were used as an aid in classification. Most of the species were asporogenous, and included representatives of the genera Candida, Trichosporon, Rhodotorula, Torulopsis, and Cryptococcus. Some species of Pichia, Saccharomyces, and Debaryomyces were isolated. The yeasts were mostly introduced into the river with the effluent from the Saskatoon sewage system.

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