scholarly journals Long-term soil accumulation of potentially toxic elements and selected organic pollutants through application of recycled phosphorus fertilizers for organic farming conditions

2018 ◽  
Vol 110 (3) ◽  
pp. 427-449 ◽  
Author(s):  
Lina Weissengruber ◽  
Kurt Möller ◽  
Markus Puschenreiter ◽  
Jürgen K. Friedel
Keyword(s):  
Organic Farming ◽  
Organic Pollutants ◽  
Toxic Elements ◽  
Potentially Toxic Elements ◽  
Phosphorus Fertilizers ◽  
Soil Accumulation

Sources of potentially toxic elements and organic pollutants in an urban area subjected to an industrial impact

2011 ◽  
Vol 184 (1) ◽  
pp. 15-32 ◽  
Author(s):  
Anabela Cachada ◽  
Maria Eduarda Pereira ◽  
Eduardo Ferreira da Silva ◽  
Armando Costa Duarte
Keyword(s):  
Urban Area ◽  
Organic Pollutants ◽  
Toxic Elements ◽  
Potentially Toxic Elements ◽  
Industrial Impact

Long-term and high-bioavailable potentially toxic elements (PTEs) strongly influence the microbiota in electroplating sites

2021 ◽  
pp. 151933
Author(s):  
Yating Luo ◽  
Jingli Pang ◽  
Chunhui Li ◽  
Jiacong Sun ◽  
Qiao Xu ◽  
...  
Keyword(s):  
Toxic Elements ◽  
Potentially Toxic Elements

scholarly journals Impact of Long-Term Reclaimed Water Irrigation on the Distribution of Potentially Toxic Elements in Soil: An In-Situ Experiment Study in the North China Plain

2019 ◽  
Vol 16 (4) ◽  
pp. 649 ◽  
Author(s):  
Xiaomin Gu ◽  
Yong Xiao ◽  
Shiyang Yin ◽  
Honglu Liu ◽  
Baohui Men ◽  
...  
Keyword(s):  
Toxic Elements ◽  
Reclaimed Water ◽  
Soil Layer ◽  
Shallow Groundwater ◽  
Potentially Toxic Elements ◽  
In Situ Experiment ◽  
The North ◽  
Reclaimed Water Irrigation

The widespread use of reclaimed water has alleviated the water resource crisis worldwide, but long-term use of reclaimed water for irrigation, especially in agricultural countries, might threaten the soil environment and further affect groundwater quality. An in-situ experiment had been carried out in the North China Plain, which aimed to reveal the impact of long-term reclaimed water irrigation on soil properties and distribution of potentially toxic elements (As, Cd, Cr, Hg, Zn and Pb) in the soil profile as well as shallow groundwater. Four land plots were irrigated with different quantity of reclaimed water to represent 0, 13, 22 and 35 years’ irrigation duration. Pollution Load Index (PLI) values of each soil layer were calculated to further assess the pollution status of irrigated soils by potentially toxic elements (PTEs). Results showed that long-term reclaimed water irrigation caused appreciable increase of organic matter content, and might improve the soil quality. High soil organic matter concentrations conduced to high adsorption and retention capacity of the soils toward PTEs, which could reduce the risk of PTEs leaching into deep layers or shallow groundwater. Highest levels of Cr, Pb and Zn were observed at 200–240 cm and 460–500 cm horizons in plots. Longer irrigation time (35 years and 22 years) resulted in a decreasing trend of As, Cd, Hg, Pb and Zn in lower part of soil profiles (>540 cm) compared with that with 13-years’ irrigation years. Long-term reclaimed water irrigation still brought about increases in concentrations of some elements in deep soil layer although their content in soils and shallow groundwater was below the national standard. Totally speaking, proper management for reclaimed water irrigation, such as reduction of irrigation volume and rate of reclaimed water, was still needed when a very long irrigation period was performed.

Occurrence and risk assessment of potentially toxic elements and typical organic pollutants in contaminated rural soils

2018 ◽  
Vol 630 ◽  
pp. 618-629 ◽  
Author(s):  
Yongfeng Xu ◽  
Shixiang Dai ◽  
Ke Meng ◽  
Yuting Wang ◽  
Wenjie Ren ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Organic Pollutants ◽  
Toxic Elements ◽  
Potentially Toxic Elements

scholarly journals Use of dredged sediments on agricultural soils from viewpoint of potentially toxic substances

2011 ◽  
Vol 57 (No. 8) ◽  
pp. 388-395 ◽  
Author(s):  
R. Vácha ◽  
J. Čechmánková ◽  
J. Skála ◽  
J. Hofman ◽  
P. Čermák ◽  
...  
Keyword(s):  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
Toxic Elements ◽  
Agricultural Soils ◽  
Ph Value ◽  
Potentially Toxic Elements ◽  
Toxic Substances ◽  
Polycyclic Aromatic ◽  
Pond Sediments ◽  
The Village

A set of 29 pond sediments samples was collected. The sediments were separated into three groups, field, village, and forest pond sediments. The sediment samples were taken from pond bottoms and sediment heaps. The sediment characteristics (pH, CEC, Al-exchangeable, C<sub>ox</sub>, humus substances), the content of potentially toxic elements and persistent organic pollutants were analysed in the sediments and compared between sediment groups. The comparison of sediment contamination with Czech legislation for sediment use in agriculture was conducted. The village sediments were more loaded by potentially toxic elements and persistent organic pollutants than the others. The pH value of sediments was considered as the properties regulating the retention of potentially toxic elements and their mobility (Al, Cd, Zn). Polycyclic aromatic hydrocarbons (PAHs) were the most problematic POPs group in the sediments. The correlation showed poor dependency of POPs (especially PAHs) content on the content and quality of sediment organic matter.

Pollution of Moscow soils with potentially toxic elements: analysis of long-term monitoring data

2020 ◽  
Author(s):  
Natalia Kosheleva ◽  
Angela Tsykhman
Keyword(s):  
Soil Pollution ◽  
Large Scale ◽  
Toxic Elements ◽  
Potentially Toxic Elements ◽  
Monitoring Data ◽  
Scale Transformation ◽  
Industrial Enterprises ◽  
South Eastern ◽  
The City

&lt;p&gt;In megacities, the environment experiences a high anthropogenic press caused by emissions from vehicles and industrial enterprises. Soils are an important component of urban landscapes: they not only accumulate pollutants, but also can be a source of secondary pollution of atmosphere and groundwater. The aim of this work is to analyze the long-term dynamics of soil contamination with potentially toxic elements (PTEs) in Moscow, as Moscow is one of the most polluted cities of Russia.&lt;/p&gt;&lt;p&gt;The basis for assessing the pollution of soils with As, Cd, Pb, Zn, Hg, Cu, Ni, Mn was the annual monitoring data for 2007-2016, which is obtained by the &amp;#171;Mosecomonitoring&amp;#187; institution and include more than 2000 points of observation. The accumulation of PTEs was characterized by a technogenic concentration factor Kc=Curb/Cb relative to the background Cb, which differed by three physiographic provinces. The total geochemical load on soils was estimated as Zc=&amp;#8721;Kc&amp;#8211;(n&amp;#8211;1), where n is the number of elements with Kc&gt;1.&lt;/p&gt;&lt;p&gt;An analysis of the changes in the pollutant content in the soils of Moscow over the decade showed a twofold increase in the accumulation of Cu, Cd, As in the Central District and Cd in the Western and Northwest ones, as well as As in the northeastern part of the city by 1.4&amp;#8211;2.3 times. In all districts, a tendency toward a decrease in pollution with Zn, Pb, and Hg was revealed. Compared with 2007, in 2016, the average content of all PTEs in the soils of the city decreased or remained unchanged, except for As.&lt;/p&gt;&lt;p&gt;The spatial distribution of PTEs in Moscow soils is controlled by the intensity and geochemical specialization of pollution sources, and varies due to soil properties. Central, Eastern, South-Eastern Districts are leading in terms of Cu and Pb pollution. Central and South-Eastern Districts are distinguished by Hg pollution. Central, North-Eastern, South-Eastern, and Southern Districts are most polluted with Zn and Cd. Soils in the southern part of Moscow are most enriched in Ni. High concentrations of As are characterized by soils of light grain-size composition with a high content of organic matter.&lt;/p&gt;&lt;p&gt;The highest values of the total soil pollution index Zc are characteristic for the Central and South-Eastern Districts, the lowest ones &amp;#8211; for the Western and North-Western Districts. Analysis of Zc maps for 2007-2016 showed a decrease in soil pollution. In 2007, uncontaminated soils occupied 35.3% of the city&amp;#8217;s area; slightly medium, and heavily polluted &amp;#8211; 33%, 22.8% and 9.4% respectively. In 2016, this sequence was as follows: 65%, 22.7%, 11%, and 1.3%. This trend is associated with a decrease in industrial production in Moscow, the removal of harmful industries outside the city and the renovation of enterprises remaining in the capital, as well as with a reduction in emissions from vehicles. Changes in the location of man-made geochemical anomalies in soils reflect leveling in the pollution from vehicles due to the construction of new housing and the large-scale transformation of Moscow regions with a decrease in traffic in the center (Bityukova, Mozgunov, 2019).&lt;/p&gt;

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