Heavy Metals and Arsenic in Soils and Plants of Polluted Urban Sites and Their Extensive Distribution in the City of Metro Manila, Philippines. Part II: Situation in Plants

1990 ◽  
pp. 143-144
Author(s):  
E.-M. Pfeiffer ◽  
J. Freytag ◽  
H.-W. Scharpenseel
Keyword(s):  
Heavy Metals ◽  
Metro Manila ◽  
The City ◽  
Urban Sites ◽  
Heavy Metals And Arsenic

Pollution of sediments of the Klyazma river by heavy metals and arsenic within the Moscow region

2020 ◽  
pp. 34-39
Author(s):  
B. Korzhenevsky ◽  
Gleb Tolkachev ◽  
Tamara Ilyina ◽  
Alina Valieva
Keyword(s):  
Heavy Metals ◽  
River Basin ◽  
Anthropogenic Load ◽  
Moscow Region ◽  
General Picture ◽  
North West ◽  
Sources Of Pollution ◽  
The Village ◽  
The City ◽  
Heavy Metals And Arsenic

The Klyazma river, the largest tributary of the Oka river (686 km), originates in a forest 50 km North-West from the city of Moscow. It drains the vast Pleistocene plain. The Klyazma river basin is a territory with developed industry and agriculture. Here are the cities of Shchelkovo, Noginsk, Elektrostal, Pavlovsky Posad, Orekhovo-Zuyevo and others. The territory was ranked according to the objects of research. Four categories of taxa are distinguished. The results of studies in areas II and III categories – within the village and urban agglomerations, tributaries of the Klyazma river. There are results of studies of contamination of sediments with heavy metals and arsenic, estimated by igeo-classes – contamination of the fraction less than 0.020 mm. The main pollutants are zinc and lead, which the anthropogenic load is estimated from moderately hazardous to strong. The general picture of pollution of sediments of the Klyazma river is presented, from which it is possible to draw a conclusion that, despite a large number of sources of pollution. It is not necessary to speak about dangerous loading on water objects today.

The impact of urban effluents on the coastal marine environment of Mediterranean islands

1995 ◽  
Vol 32 (9-10) ◽  
pp. 85-94 ◽  
Author(s):  
Michael O. Angelidis
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Marine Environment ◽  
Suspended Particle ◽  
Pollution Source ◽  
Mediterranean Islands ◽  
Coastal Marine Environment ◽  
Coastal Marine ◽  
The Impact ◽  
The City

The impact of the urban effluents of Mytilene (Lesvos island, Greece) on the receiving coastal marine environment, was evaluated by studying the quality of the city effluents (BOD5, COD, SS, heavy metals) and the marine sediments (grain size, organic matter, heavy metals). It was found that the urban effluents of Mytilene contain high organic matter and suspended particle load because of septage discharge into the sewerage network. Furthermore, although the city does not host important industrial activity, its effluents contain appreciable metal load, which is mainly associated with the particulate phase. The city effluents are discharged into the coastal marine environment and their colloidal and particulate matter after flocculation settles to the bottom, where is incorporated into the sediments. Over the years, the accumulation of organic matter and metals into the harbour mud has created a non-point pollution source in the relatively non-polluted coastal marine environment of the island. Copper and Zn were the metals which presented the higher enrichment in the sediments of the inner harbour of Mytilene.

HEAVY METALS AND ARSENIC CONTAMINATION IN LA BARRA DE SANTIAGO ESTUARY, EL SALVADOR

2019 ◽  
Author(s):  
Dina L. López ◽  
◽  
Abiodun E. Ayo-Bali ◽  
Mauricio Vasquez Jandres ◽  
Benancio Henriquez Miranda
Keyword(s):  
Heavy Metals ◽  
El Salvador ◽  
Arsenic Contamination ◽  
Heavy Metals And Arsenic

scholarly journals Geochemical Mapping, Risk Assessment, and Source Identification of Heavy Metals in Road Dust Using Positive Matrix Factorization (PMF)

Atmosphere ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 614
Author(s):  
Muhammad Faisal ◽  
Zening Wu ◽  
Huiliang Wang ◽  
Zafar Hussain ◽  
Chenyang Shen
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Matrix Factorization ◽  
Anthropogenic Activities ◽  
Contamination Factor ◽  
Road Dust ◽  
Positive Matrix Factorization ◽  
Prevention Measures ◽  
Positive Matrix ◽  
The City

Heavy metals in road dust pose a significant threat to human health. This study investigated the concentrations, patterns, and sources of eight hazardous heavy metals (Cr, Ni, Cu, Zn, As, Cd, Pb, and Hg) in the street dust of Zhengzhou city of PR China. Fifty-eight samples of road dust were analyzed based on three methods of risk assessment, i.e., Geo-Accumulation Index (Igeo), Potential Ecological Risk Assessment (RI), and Nemerow Synthetic Pollution Index (PIN). The results exhibited higher concentrations of Hg and Cd 14 and 7 times higher than their background values, respectively. Igeo showed the risks of contamination in a range of unpolluted (Cr, Ni) to strongly polluted (Hg and Cd) categories. RI came up with the contamination ranges from low (Cr, Ni, Cu, Zn, As, and Pb) to extreme (Cd and Hg) risk of contamination. The risk of contamination based on PIN was from safe (Cu, As, and Pb) to seriously high (Cd and Hg). The results yielded by PIN indicated the extreme risk of Cd and Hg in the city. Positive Matrix Factorization was used to identify the sources of contamination. Factor 1 (vehicular exhaust), Factor 2 (coal combustion), Factor 3 (metal industry), and Factor 4 (anthropogenic activities), respectively, contributed 14.63%, 35.34%, 36.14%, and 13.87% of total heavy metal pollution. Metal’s presence in the dust is a direct health risk for humans and warrants immediate and effective pollution control and prevention measures in the city.

Distribution of Heavy Metals and Arsenic in Greenbelt Roadside Soils of Pudong New District in Shanghai

2009 ◽  
Vol 18 (6) ◽  
pp. 702-714 ◽  
Author(s):  
H. L. Fang ◽  
Y. Dong ◽  
B. Gu ◽  
G. J. Hao ◽  
Z. W. Lv ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Roadside Soils ◽  
Heavy Metals And Arsenic

A spatiotemporal analysis of fire incidents in Manila from 2011-2016

2019 ◽  
Vol 28 (2) ◽  
pp. 201-215 ◽  
Author(s):  
Rex Bringula ◽  
Francis Balahadia
Keyword(s):  
Spatiotemporal Analysis ◽  
Policy Formulation ◽  
Fire Prevention ◽  
Government Control ◽  
Content Type ◽  
Spatiotemporal Characteristics ◽  
Building Maintenance ◽  
Metro Manila ◽  
The City ◽  
Fire Incidence

Purpose The purpose of this paper is to report the results of spatiotemporal analysis of the 3,506 fire incidents in the city of Manila from 2011 to 2016. Design/methodology/approach A spatiotemporal and statistical analysis was carried out to determine the pattern of fire incidents in the city of Manila. Findings Fire incidence in Manila did not exhibit any pattern in terms of time, day of the week or month of the year. However, fire incidence did exhibit a pattern in terms of location. Faulty electrical connections are the major cause of fires throughout the year and throughout the 14 municipalities of Manila. Thus, the null hypothesis stating that spatiotemporal characteristics of cases of fire in the city of Manila do not exhibit a pattern is partially rejected. Research limitations/implications Future studies may investigate the influence of building maintenance, government control, and cooking and cigarette-disposal behaviors on fire occurrence. It is recommended that the study be replicated in other cities of Metro Manila. Practical implications Based on the causes and the spatiotemporal characteristics of fires, stakeholders (e.g. government, Bureau of Fire Protection, local government units (LGUs), communities and residents) can be informed about how to prevent fires. LGUs and government agencies can utilize the findings of this study in developing fire prevention programs for the municipalities with the highest incidence of fires. Originality/value These findings can serve as a basis for policy formulation and as a reference for the allocation of fire prevention resources and for the literature on strategic planning for fire prevention in Manila.

scholarly journals The Role of the Humic Substances in the Fractioning of Heavy Metals in Rodrigo de Freitas Lagoon, Rio de Janeiro - Brazil

2013 ◽  
Vol 85 (4) ◽  
pp. 1289-1301 ◽  
Author(s):  
ESTEFAN M. DA FONSECA ◽  
JOSE A. BAPTISTA NETO ◽  
JOHN MCALISTER ◽  
BERNARD SMITH ◽  
MARCOS A. FERNANDEZ ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Rio De Janeiro ◽  
Water Soluble ◽  
Metal Partitioning ◽  
Fine Grain ◽  
Soluble Phase ◽  
The City ◽  
South Zone

One of the main results of the processes related to urbanization is the contamination of the adjacent water bodies. Inserted in this context, the Rodrigo de Freitas lagoon is situated in the south zone of the city of Rio de Janeiro. This ecosystem receives several inputs containing all sorts of pollutants, including heavy metals. The present work aimed to study the partitioning of heavy metals in the sediments of Rodrigo de Freitas and the influence of organic matter in this fractionation dynamic. The results of these analyses presented the contents of organic matter as an important metal-capturing agent. Fractionation of organic matter resulted in a predominance of humine. Heavy metal partitioning showed that the metals bound by the water-soluble phase have no significant concentrations. Special features such as, reducing sediment, high levels of organic matter and fine grain size have transformed this ecosystem in an effective deposit of pollutants, where heavy metals are not available in easily reactive fractions.

Heavy metals in organs of stray dogs and cats from the city of Naples and its surroundings (Southern Italy)

2018 ◽  
Vol 26 (4) ◽  
pp. 3473-3478 ◽  
Author(s):  
Mauro Esposito ◽  
Antonella De Roma ◽  
Pasquale Maglio ◽  
Donato Sansone ◽  
Giuseppe Picazio ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Southern Italy ◽  
Stray Dogs ◽  
The City
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