Phosphate-solubilizing capability of microbes in the sediments from different pollution sources in Lake Fuxian

A study was undertaken to investigate to occurance of phosphate solubilizing bacteria from rhizosphere soil samples of medicine plants in Cibodas Botanical Garden. 13 soil samples of medicine plants are collected randomly The result shows that 71 isolates of phosphate solubilizing bacteria were isolated, and 10 species of these organism was identified as Azotobacter sp, Bacillus sp, Chromobacterium sp, C.violaceum, Citrobacter sp. , Enterobacter sp., E. liquefaciens. Nitrosomonas sp., Serratia rubidaea, Sphaerotillus natans. Azotobacter sp. And Bacillus sp. Are found in all of soil tested. Conversely, Serratia rubidaea is only in the sample from rhizosphere of Plantago mayor The activity of acid alkaline phosphatase in soil tested ranged from 0.78 â€“ 60,18 ugp nitrophenole/g/h, with the higest values being recorded in soil sample from rhizosphere of â€œLavenderâ€.Keywords : phosphate solubilizing bacteria, soil enzyme phosphatase

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ENVIRONMENTAL IMPACT AND RISK ASSESSMENT OF THE MAIN POLLUTION SOURCES FROM THE ROMANIAN BLACK SEA COAST

Environmental Engineering and Management Journal ◽

10.30638/eemj.2015.033 ◽

2015 ◽

Vol 14 (2) ◽

pp. 331-340 ◽

Cited By ~ 2

Author(s):

Carmen Teodosiu ◽

Brindusa Robu ◽

Oana Jitar ◽

Stefan-Adrian Strungaru ◽

Mircea Nicoara ◽

...

Keyword(s):

Risk Assessment ◽

Environmental Impact ◽

Black Sea ◽

Pollution Sources ◽

Black Sea Coast ◽

Sea Coast

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ASSESSMENT OF JAJROOD RIVER WATERSHED MICROBIAL POLLUTION: SOURCES AND FATES

Environmental Engineering and Management Journal ◽

10.30638/eemj.2010.053 ◽

2010 ◽

Vol 9 (3) ◽

pp. 385-391

Author(s):

Mahdi Maghrebi ◽

Masoud Tajrishy ◽

Mahdi Jamshidi

Keyword(s):

Pollution Sources ◽

Microbial Pollution ◽

River Watershed

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VALORIZATION OF THE URBAN ENVIRONMENT OF SOUTH SERBIA FROM THE AIR QUALITY ASPECT

Knowledge International Journal ◽

10.35120/kij28041329m ◽

2018 ◽

Vol 28 (4) ◽

pp. 1329-1333

Author(s):

Miodrag Šmelcerović

Keyword(s):

Air Pollution ◽

Air Quality ◽

Urban Environment ◽

Pollution Sources ◽

Anthropogenic Sources ◽

Anthropogenic Factors ◽

Limit Values ◽

Cause And Effect ◽

Sources Of Pollution

The protection of the environment and people’s health from negative influences of the pollution of air as a medium of the environment requires constant observing of the air quality in accordance with international standards, the analysis of emission and imission of polluting matters in the air, and their connection with the sources of pollution. Having in mind the series of laws and delegated legislations which define the field of air pollution, it is necessary to closely observe these long-term processes, discovering cause-and-effect relationships between the activities of anthropogenic sources of emission of polluting matters and the level of air degradation. The relevant evaluation of the air quality of a certain area can be conducted if the level of concentration of polluting matters characteristic for the pollution sources of this area is observed in a longer period of time. The data obtained by the observation of the air pollution are the basis for creation of the recovery program of a certain area. Vranje is a town in South Serbia where there is a bigger number of anthropogenic pollution sources that can significantly diminish the air quality. The cause-and-effect relationship of the anthropogenic sources of pollution is conducted related to the analysis of systematized data which are in the relevant data base of the authorized institution The Institute of Public Health Vranje, for the time period between the year of 2012. and 2017. By the analysis of data of imission concentrations of typical polluting matters, the dominant polluting matters were determined on the territory of the town of Vranje, the ones that are the causers of the biggest air pollution and the risk for people’s health. Analysis of the concentration of soot, sulfur dioxide and nitrogen oxides indicates their presence in the air of Vranje town area in concentrations that do not exceed the permitted limit values annually. The greatest pollution is caused by the soot content in the air, especially in the winter period when the highest number of days with the values above the limit was registered. By perceiving the influence of natural and anthropogenic factors, it is clear that the concentration of polluting matters can be decreased only by establishing control over anthropogenic sources of pollution, and thus it can be contributed to the improvement of the air quality of this urban environment.

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Influence of Bacau City�s Antropic Activities on the Heavy Metals Concentration Measured on Bistrita and Siret River Sides

Revista de Chimie ◽

10.37358/rc.20.1.7856 ◽

2020 ◽

Vol 71 (1) ◽

pp. 350-354

Author(s):

Alexandra-Dana Chitimus ◽

Florin-Marian Nedeff ◽

Ion Sandu ◽

Cristian Radu ◽

Emilian Mosnegutu ◽

...

Keyword(s):

Heavy Metals ◽

Pollution Sources ◽

Municipal Waste ◽

Sampling Points ◽

River Banks

The main objective of the current research is to determine the content of heavy metals from the Bistrita and Siret River banks, respectively Siret River � in Bridge Holt area, Siret River � canal UHE and Siret River- downstream confluence Bistrita/Siret. The choice of sampling points took into consideration the areas where the pollution sources are located. Established maximum values were not exceeded in the case of mercury in the soil for all three sampling points Siret River � in Bridge Holt area, Siret River � canal UHE and Siret River- downstream confluence Bistrita/Siret. Exceeding values recorded in the sampling points Siret River � in Bridge Holt area, Siret River � canal UHE and Siret River- downstream confluence Bistrita/Siret (for cadmium, nickel and chrome) resulted from discharged residual waters, industrial platforms form Bacau city and the improper storage of municipal waste.

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Hydrogeochemistry of Toxic Elements in Urbanized Geotechnical Systems

Water Quality Research Journal ◽

10.2166/wqrj.1997.030 ◽

1997 ◽

Vol 32 (3) ◽

pp. 523-550

Author(s):

S.N. Volkov

Keyword(s):

Heavy Metals ◽

Toxic Elements ◽

Life Support ◽

Alkylating Agents ◽

Pollution Sources ◽

The Urals

Abstract In urbanized geotechnical systems (UGSs), the majority of problems related to the ecological hydrochemistry of Cd, Pb, Ni and other heavy metals are the result of emergent characteristics of a system as a whole as opposed to individual pollution sources. In petrochemical UGSs, pollution of the environment from compounds containing methylating or alkylating agents results in an increase in the mobility of Cd, Pb, Ni, Cr and As. This process is controlled by environmental and microclimatic factors rather than by pollution sources. Under conditions of predominant dust and element effects, geo-chemically paradoxical associations of Cd with Ni, Mn and Cr can be formed in the main life support media in mining and metallurgical UGSs. Uncontrolled processes of hydrochemical interactions take place in complex multifunctional UGSs, leading to a change in speciation of heavy metals, particularly cadmium. This report is part of a 5-year study of the geotechnical systems in the Urals.

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