Atmospheric deposition of cadmium in an urbanized region and the effect of simulated wet precipitation on the uptake performance of rice

Cao, Xueying; Tan, Changyin; Wu, Longhua; Luo, Yongming; He, Qing; Liang, Yongye; Peng, Bo; Christie, Peter

doi:10.1016/j.scitotenv.2019.134513

Cited by 36 publications

(25 citation statements)

References 57 publications

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“…Atmospheric deposition is an important means by which heavy metals can enter the soil, such as through irrigation water, sewage sludge use, and so on (Cao et al, 2020;Yu and Liu, 2021). Air pollutants enter the water and soil environment in the form of depositions (Yu et al, 2019), causing environmental problems such as water eutrophication, soil acidification, and heavy metal pollution in water and soil (Xia et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Superposition Effects of Zinc Smelting Atmospheric Deposition on Soil Heavy Metal Pollution Under Geochemical Anomaly

Liu

et al. 2022

Front. Environ. Sci.

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Guizhou Province is covered by a large area of carbonate rocks where, with a higher background of heavy metals under the geochemical anomaly, more than 3.6 × 105 ha of heavy metal–contaminated soil in the northwest area is related to historical indigenous zinc smelting. To explore the superposition effect of industrial source atmospheric deposition on soil, two watersheds were selected for study: 1) Maoshui reservoir watershed (MS), where there is a zinc smelting plant, and 2) Haishe lake watershed (HS), which was the control. We collected atmospheric depositions and soil for 3 years and analyzed Cadmium (Cd), lead (Pb), chromium (Cr), copper (Cu), nickel (Ni), and zinc (Zn) content. The results show that the heavy metals in the atmospheric deposition of the pollution watershed in MS were much higher than those in the control site, HS. The deposition fluxes of Cd, Pb, Cr, Ni, and Zn in MS were 27.8, 602, 145, 43.9, and 2,225 mg·m−2·a−1, respectively, and were 1.37–2.01 times higher than in HS. Soil heavy metals in MS were 1.01–5.69 times higher than in HS. The elevated concentrations were found focused from northeast to southwest around the plant but was distributed uniformly in HS. The average concentration of Cd, Pb, and Zn in the soil was 6.54, 67.4, and 264 mg·kg−1, respectively, in HS, which represents a high geochemical background even without pollution. After 13 years of deposition by prediction, the contribution of the atmospheric deposition on the soil in the zinc-smelting area was lowest, at 5.10%, for Ni, and highest, at 17.9%, for Cd. Principal component analysis of atmospheric deposition and soil heavy metals reflected that the pollution sources in MS were more diversification than those in HS. Zinc smelting atmospheric deposition showed superposition effects on the accumulation of heavy metals in soil under the geochemical anomaly in this region.

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Section: Introductionmentioning

confidence: 99%

Superposition Effects of Zinc Smelting Atmospheric Deposition on Soil Heavy Metal Pollution Under Geochemical Anomaly

Liu

et al. 2022

Front. Environ. Sci.

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“…A remarkable atmospheric deposition of heavy metal(loid)s occurs in plants and soil, independent of the time scale. In effect, atmospheric deposition is responsible for over 90% of the total plant uptake of Pb [52] and over 50% of the plant uptake of Cd [53].…”

Section: Mobility and Transport Agents In The Biospherementioning

confidence: 99%

“…The second category is the cell-surface interactions, which are related to metal(loid) binding. For instance, algal surfaces contain functional groups such as carboxylic, amino, thio, hydroxo, and hydroxy-carboxylic groups, which may interact with metal(loid) ions by providing electronegative sites for metal(loid) binding [81]. The last category involves extracellular interaction between the metal(loid) and the biopolymers secreted by microorganisms (Extracellular Polymeric Substances, EPS), with the latter mainly comprising extracellular proteins, polysaccharides, and humus acid substances.…”

Section: Figurementioning

confidence: 99%

Sources, Mobility, Reactivity, and Remediation of Heavy Metal(loid) Pollution: A Review

Guijarro¹,

Pachés²,

Romero³

et al. 2021

AEER

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Heavy metal(loid)s are a group of elements present commonly in the environment, including Cr, Ni, Cu, Zn, Cd, Hg, Pb, and As elements, among others. While these elements could have their origins in natural sources, anthropogenic activities, such as mining, agriculture, industry, etc., are also responsible for enhancing the concentration of these elements in the ecosystems up to undesirable levels. A few of these metal(loid)s serve as necessary micronutrients for life, while the others are extremely harmful and might affect the entire trophic chain upon entering the natural ecosystems due to their mobility and toxicity characteristics. Most of these heavy metal(loid) pollutants are already recognized for their harmful effects; nevertheless, their environmental control encounters obstruction due to various factors. In this context, the present report details the key points regarding the anthropogenic sources of heavy metal(loid) pollution, which are increasing rapidly with time due to the emerging industry practices and processes, the elements causing this kind of pollution, and the physicochemical processes of these elements occurring in the environment–air interface, soil, and water-air interface. These elements exert a severe impact on the environment, which could be mitigated through the development and application of various remediation techniques. Therefore, the present report concludes with a final discussion on the various remediation treatments currently available for reducing the heavy metal(loid) contamination level in both water and soil.

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“…At the international level, studies on the flow of major ions (Ca 2+ , K + , Mg 2+ , Na + , NH 4 + , Cl − , NO 3 − , SO 4 2− , and HCO 3 − ) have been widely reported, showing their abundance, deposition patterns, and principal emission sources, showing the relationship between the acid and alkaline components and their effect on the environment [12,13]. In addition, trace metals in rainwater have been widely documented, mainly for metals or metalloids that represent a risk due to their toxicity to health and ecosystems, such as mercury (Hg), lead (Pb), cadmium (Cd), among others [14,15]. These potentially toxic metals have increased their presence in the atmosphere due to industrialization and urban growth.…”

Section: Introductionmentioning

confidence: 99%

“…These potentially toxic metals have increased their presence in the atmosphere due to industrialization and urban growth. On a regional scale, it has been identified that atmospheric deposition is the main source of metal input, especially in agricultural or natural systems [15]. The Metropolitan Area of Monterrey (MAM) located in the Northeast of Mexico, in Nuevo Leon state, contributes with 7.4% of the national Gross Domestic Product (GDP).…”

Section: Introductionmentioning

confidence: 99%

Chemical Composition of Bulk Precipitation and Its Toxicity Potential Index in the Metropolitan Area of Monterrey, Northeastern Mexico

et al. 2020

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The rainwater chemistry within the Metropolitan Area of Monterrey (MAM) was studied during a one-year period (January 2019–January 2020) in seven sampling sites. The metal concentration of Zn, Fe, Cd, Cu, Ni, and Mn was analyzed in bulk samples and the toxicity potential (TP) was calculated for each metal. A canonical correspondence analysis (CCA) was applied to identify the relationship between environmental variables and metals concentrations. An average of 26.6 ± 10 mm of rainfall was obtained. A mean pH of 7.2 ± 0.3 and a mean electrical conductivity of 177.8 ± 8.7 µS cm−1 were observed. The average concentration of metals in all sites follows a descending order of Fe> Zn > Mn > Cu > Ni > Cd. The university site shows the highest averages of Fe, Zn, Cu, and Mn, which is attributed to its proximity to the metallurgical industry. The TP value of Cd reflects a risk in all sites and Fe only for the Universidad, Obispado, Pastora, and Santa Catarina sites, using as a reference value the Environmental Protection Agency (EPA) Drinking Water Regulations and Mexican norm NOM-127-SSA1-1994. The CCA analysis showed that only Ni and Cd had a strong correlation with the environmental variable of relative humidity of air.

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Atmospheric deposition of cadmium in an urbanized region and the effect of simulated wet precipitation on the uptake performance of rice

Cited by 36 publications

References 57 publications

Superposition Effects of Zinc Smelting Atmospheric Deposition on Soil Heavy Metal Pollution Under Geochemical Anomaly

Superposition Effects of Zinc Smelting Atmospheric Deposition on Soil Heavy Metal Pollution Under Geochemical Anomaly

Sources, Mobility, Reactivity, and Remediation of Heavy Metal(loid) Pollution: A Review

Chemical Composition of Bulk Precipitation and Its Toxicity Potential Index in the Metropolitan Area of Monterrey, Northeastern Mexico

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