About
67
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Introduction
My research interest focuses on the soil chemistry of heavy metals in calcareous soils, especially the species, transfer from soil or other environmental compartments to edible parts of plants of heavy metals, and the safe utilization of heavy metal polluted soils in northern China.
Additional affiliations
February 2019 - February 2020
Position
- Visiting scholar
Description
- I do research on remediation of mining contaminated soils.
March 2015 - March 2020
Position
- Professor
Description
- I do research about the chemistry and risk of nonferrous metal smelting pollution.
September 2012 - February 2014
U. S. Environmental Protection Agency
Position
- Visiting scholar
Description
- I mainly focus on the immobilization of heavy metals and mettaloids in soil.
Education
March 2005
Xian Foreign Language University
Field of study
September 2001 - July 2004
Institute of Soil Science, CAS
Field of study
September 1998 - June 2001
Publications
Publications (67)
Heavy metal contaminated mine lands pose environmental risks, and thus reclamation is paramount for improving soil, plant, animal, and ecosystem health. A heavy metal contaminated alluvial mine tailing, devoid of vegetation, received 224 Mg ha-1 of both lime and biosolids in 1998, and long-term reclamation success was quantified in 2019 with respec...
Cadmium (Cd), a typical heavy metal not essential for the human body, can cause harm to the liver and kidneys upon exposure. Hence, rapid cadmium detection in the environment is of utmost importance. This research presents an effective approach for detecting divalent cadmium ions (Cd2+) using a sensitive dual hairpin (HP) electrochemical aptasensor...
Effect of commonly used heavy metal immobilizing agents on risks of soil heavy metals has not been well investigated. In this work, a contaminated acidic soil (total Cd = 8.05, total Pb = 261 mg kg 1) was amended with soluble phosphate (P: 160 mg kg 1) and bentonite (3 g kg 1) and incubated for 360 d. The soil was then
added to mouse feed at 1:9...
This work investigated the effect of soil amendments on the mobility of heavy metals and P in acidic and calcareous heavy metal polluted soils after incubated for one year. Compared to phosphate alone, the phosphate+ben-tonite amendment had lower available P concentrations (13.1 and 16.3% in the acidic and calcareous soils, respectively) and simila...
Cadmium, as a typical heavy metal, is not required by the human body, which can cause damage to the liver and kidneys when it enters the body. Therefore, the rapid detection of cadmium in the environment is crucial. In this study, a sensitive dual hairpin (HP) electrochemical aptasensor with AuPd/Fe-MOF as the signal labels and Au/Cu2O as the subst...
Efect of diferent fermentation methods on heavy metal bioaccessibilities in wheat four is undetermined. In this work, gastric and gastrointestinal heavy metal bioaccessibility in wheat four products (control-wheat dough, T1-mantou made
with normally fermented dough, T2-mantou made with over-fermented dough and T3-mantou made with over-fermented dou...
Geophagy is common for free-range chickens, however, the relative bioavailability (RBA) of heavy metals in contaminated soils consumed by chickens has not fully investigated. In this work, chickens were fed diets increasingly spiked with a contaminated soil (Cd=105, Pb=4840 mg kg−1; 3, 5, 10, 20 and 30 % of overall feed by weight), or Cd/Pb reagent...
Effect of different fermentation methods on heavy metal bioaccessibilities in wheat flour is undetermined. In this work, gastric and gastrointestinal heavy metal bioaccessibility in wheat flour products (CK-wheat dough, T1-mantou made with normally fermented dough, T2-mantou made with over-fermented dough and T3-mantou made with over-fermented doug...
A target-induced strand displacement (TISD) electrochemical aptasensor is reported for the sensitive determination of tobramycin (TOB). A novel substrate was synthesized by loading cerium-based metal organic framework (Ce-MOF) that was modified by Pd nanoparticles (PdNPs), onto polyethyleneimine (PEI)-modified molybdenum disulfide (MoS2). The subst...
Cadmium (Cd) pollution of wheat fields is a serious environmental and health problem that warrants attention. Manganese (Mn)-containing materials are considered effective for inhibiting Cd accumulation in Cd-contaminated acidic soils. However, information on the long-term remediation effects of Mn fertilizers on Cd accumulation in wheat and on the...
Atmospheric deposition of Cd, from anthropogenic activities, can be directly deposited onto and absorbed into wheat plants, yet, how foliar absorbed Cd is translocated in wheat plants is not well understood. A pot experiment investigated foliar Cd application on the accumulation and distribution of heavy metals in various wheat parts. Wheat was gro...
Atmospheric deposition of Cd, from anthropogenic activities, can be directly deposited onto and absorbed into wheat plants, yet, how foliar absorbed Cd is translocated in wheat plants is not well understood. A pot experiment investigated foliar Cd application on the accumulation and distribution of heavy metals in various wheat parts. Wheat was gro...
The microscale spatial heterogeneity and complexity of soil aggregates affect the properties and distribution of heavy metals (HMs). It has been confirmed that amendments can alter the distribution of Cd in soil aggregates. However, whether the Cd immobilization effect of amendments varies across soil aggregate levels remains unknown. In this study...
Arsenic (As) is a toxic metalloid that is a significant global pollutant of the environment and a persistent bioaccumulation carcinogen. Earthworms are frequently employed as sentinel organisms to investigate the bioavailability of As in contaminated soils. However, the process of As accumulation in earthworms and the mechanism of transformation of...
Fifty-four multiparous beef cows with calves were used to evaluate the effects of Mo source (feed or water) on reproduction, mineral status, and performance over two cow-calf production cycles (553 days). Cows were stratified by age, body weight, liver Cu, and Mo status and were then randomly assigned to one of six treatment groups. Treatments were...
To understand the impact of urbanization process on heavy metals (HMs) (distribution, sources and risks) in soil in different land-use types, we collected soil samples from 38 sites in Zhengzhou, China, and divided them into industrial, residential and agricultural areas. Various indices, including single factor pollution index (Pi), Nemerow pollut...
Fifty-four multiparous beef cows with calves were used to evaluate the effects of Mo source (feed or water) on reproduction, mineral status, and performance over two cow-calf production cycles (553 d). Cows were stratified by age, body weight, liver Cu and Mo status, and were then randomly assigned to one of six treatment groups. Treatments were: 1...
Soil is the most important resource for plant growth and human survival, supporting agricultural production and human habitation. However, due to unreasonable anthropo-genic activities, soil receives a large amount of hazardous and toxic materials, including common contaminants such as toxic metal(loid)s and organic contaminants, and emerging conta...
Non-ferrous metal smelting results in heterogenous spatial distribution of potentially toxic metals (PTM) near smelters. In this work, windowsill dusts were collected from smelting (SA) and urban (UJ) sub-areas of Jiyuan (a city affected by >70 years of Pb smelting) to investigate PTM source and bioaccessibility. The <10 μm fraction of dusts were a...
The accumulation of total Pb, Cd, Cu, and Zn in soils (0-5 cm) and windowsill dust fractions (45-125, 10-45, and < 10 μm), and soil pollution indices (PI), were investigated in a long-term (~ 70 years) Pb smelter area and in the nearby urban city of Jiyuan, China. Principal component analysis (PCA) was utilized to identify metal contamination sourc...
Conversion from conventional tillage to no-till in surface irrigated agroecosystems is low, mostly due to difficulties crop residue creates for water surface flow if no-till is implemented. A three-year continuous corn (Zea mays L.) study was conducted to evaluate the effects of residue management (retained yet mechanically moved out of the irrigat...
Assessing the effects of calcium-containing amendments on heavy metal availability in metal-polluted, varying pH soils, is essential for remediation purposes. An acidic and a calcareous heavy metal-polluted soils were amended with lime (calcium hydroxide), calcium nitrate or calcium chloride, and then, heavy metal bioavailability was assessed using...
Cadmium (Cd) contamination in wheat is a serious issue. The application of exogenous additives can effectively inhibit Cd bioavailability in soil and decrease Cd accumulation in wheat. However, a comprehensive and quantitative analysis of how additives affect wheat Cd accumulation, wheat yield, soil Cd availability, and soil properties is lacking....
The objective of this experiment was to evaluate the effects of Mo source (feed or water) on performance and mineral status of cows and calves fed a forage-based diet for two years (DM basis: 6.6% CP; 0.14% S, 6.7 mg Cu/kg, 2.4 mg Mo/kg). Fifty-four cow-calf pairs were stratified by cow age, BW, and liver Cu and Mo status, and randomly assigned to...
In this study, a hierarchically porous Zr‐MOF‐labeled electrochemical biosensor for the detection of Adenosine Triphosphate (ATP) was constructed using polyethylenimine‐reduced graphene oxide/Gold nanowire nanocomposite (PEI‐rGO/AuNWs) and exonuclease Ⅰ (Exo Ⅰ) assisted target recycling strategy. PEI‐rGO/AuNWs nanocomposite not only favor the immob...
Herein, PtPd nanoparticles compound polyethyleneimine-functionalized reduced graphene oxide (PtPd NPs/PEI-rGO) was used as the substrate material, Exonuclease III (Exo III)-assisted triple-amplified was integrated into electrochemical platform for the detection of deoxynivalenol (DON). PtPd NPs/PEI-rGO as the substrate material increased the surfac...
In this work, we design an immunosensor for zearalenone (ZEN) detection with PEI-rGO/Pt@Au NRs nanocomposite as the modification material. PEI-rGO/Pt@Au NRs nanocomposite have good stability, conductivity and a large specific surface area, so they are chosen as the substrate material for the modified electrode, which is beneficial in improving the...
Wheat (Triticum aestivum L.) flour consumption may be a major source of human metal intake, especially when wheat is cultivated in metal‐contaminated soils. This work investigated Cd, Cu, Pb, and Zn distribution in whole wheat flour, wheat flour, and wheat bran when grown in an area polluted by Pb smelting. Wheat product heavy metal concentrations...
This study is aimed to analyze ecological risk for heavy metals in farmland soil. In order to solve the problem of uncertainty in the risk assessment process, the potential ecological risk analysis based on Monte Carlo is established. The evaluation results showed that the probability of As belonging to low risk level was 100%; that of Pb belonging...
Atmospheric deposition samples were collected over 15 mo at several locations near an operating smelter and an abandoned Pb smelter to investigate the contribution of Pb smelting to depositional fluxes and potential local air quality degradation. Samples were analyzed for As, Cd, Cu, Pb, and Zn and subjected to scanning electron microscopy (SEM)–en...
Windowsill, heavy metal-containing dust samples, collected at different building heights, may provide some insight into both source and human health risk. Windowsill dust samples were collected from the 1st to 9th floor (1.4–23.2 m above ground) near a lead smelter (1 km to the smelter) and in urban areas (4.2–7.3 km to the smelter) and separated i...
Smelting activities have been shown to increase the likelihood of environmental heavy metal accumulation and bioaccumulation potential within relative proximity to smelter sites. This investigation focused specifically on cadmium (Cd), copper (Cu), lead (Pb) and zinc (Zn) accumulation in 43 wild plant species and corresponding soils near a Pb smelt...
Cadmium is toxic to plants, easily reaching unsafe levels for animal and human consumption. A greenhouse experiment investigated the effect of foliar-applied Cd on the accumulation and distribution of Cd, Zn, Cu and Pb in wheat (Triticum aestivum) grown in heavy metal-contaminated soil. Cadmium solutions (0, 10, 20, 30 and 40 mg kg⁻¹) were repeated...
Cadmium, Cu, Pb and Zn concentrations and distribution in soil, wheat, and the potential for human heavy metal accumulation near a Pb smelting affected area were investigated. Farm land soil, wheat grain and scalp hair samples were collected from three villages (named QD, GF and BS) with increasing distance from a large Pb smelter in China. Soil Cd...
Windowsill particulate matter (PM) samples were collected from an area near large lead-smelting facilities in Jiyuan (JP), the urban area of Jiyuan (JU) and the peri-urban area of Mianchi (MC) in Henan, China to investigate the concentration and inhalation bioaccessibility of Cd, Cu, Pb and Zn. The <10 μm portions of the samples were extracted with...
This work was conducted to explore heavy metal pollution in soils in an area near lead smelters in Jiyuan City, which is one of the main lead production areas in China. Altogether, 88 topsoil samples (0–20 cm) were collected from farmlands near the Yuguang lead smelting facilities; the sampling sites were 1570 to 6388 m to the main stack of the Yug...
Higher concentrations of Pb and Cd in wheat grains harvested in several lead-smelting-polluted areas in northern China have been reported. This field experiment was conducted to investigate the effect of phosphate amendment and Zn foliar application on the accumulation of Pb and Cd in wheat grains grown in a lead-smelting impacted area in Jiyuan in...
An efficient and convenient Cu-catalyzed three-component reaction is described for the selenation of imidazoheterocycles/indoles with Se powder and aryl iodides. This procedure provides diverse 3-arylselenylimidazoheterocycles and 3-arylselenylindoles with good yields and functional group tolerance. Some of the products exhibited better or comparab...
A lead (Pb) smelting contaminated soil was amended with phosphate and/or calcium (Ca), chlorine (Cl) at different soil moisture contents to investigate methods of gaining better lead immobilization with phosphate. The soil with total Pb concentration of 517 mg·kg⁻¹ was amended with 5 mmol·kg⁻¹ phosphate, and/or spiked with 10 mmol·kg⁻¹ Ca(NO3)2, 5...
Soil contamination and human impacts have been reported in the vicinity of lead (Pb) smelters in Henan, China. However, no information is available on crop uptake of soil contaminants near these smelters. Grains, glume, rachis, and stem/leaf samples of 25 wheat (Triticum aestivum) varieties were collected from a small, smelter-impacted agricultural...
Atmospheric deposition from non-ferrous mining and smelting is one of the dominant sources of heavy metal pollution in soil. Jiyuan City in Henan Province, China produces about 900 000 tonnes of lead annually. Heavy metal soil contamination and elevated blood lead levels (BLLs) of local children in Jiyuan have been reported. This work investigated...
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The effect of intercropping wheat(Triticum aestivum) with Cd hyperaccumulator Sedum plumbizincicola was investigated in a field experiment on calcareous, lead smelting contaminated soils in Henan Province. Wheat varieties Bainong Aikang 58 and Zhengmai 7698 were either monocultured or intercropped with Sedum plumbizincicola in alternating rows. Int...
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This study investigates the feasibility of phytoextraction in a heavy metal contaminated soil in Henan Province in northern China with Sedum plumbizincicola, a Cd/Zn hyperaccumulator originally growing in southern China. Sedum plumbizincicola seedlings or stem cuttings were transplanted to a lead-smelting contaminated field soil with total concentr...
The lead (Pb) smelti ng activities in Henan Province already had a negative effect on the environment. However, the information about the heavy metal concentration and distribution in soils near the smelting plants is still scarcely obtained. In this work, soil samples were collected from farm fields near a lead smelting plant which produces more t...
enan province in northern China produces about one tenth of the lead (Pb) in the world, the lead smelters expel heavy metals from their stacks as a by-product. Soils in the vicinity of these operations have elevated heavy metal concentrations as a result, which affects the health of local people through exposure to heavy metal uptake via food or du...
We investigated the effect of soluble Ca on the speciation of Pb in phosphate-amended soils. A calcareous soil was amended in sequence with soluble phosphate (0 and 299 mg kg−1 P), calcium nitrate (0, 200, and 400 mg kg−1 Ca), and/or lead nitrate (0 and 1000 mg kg−1 Pb) and incubated for 50 d. Extractable Ca was relatively similar across all sample...
An effective way to remeidate heavy metal polluted soil is phosphate amemndment. This work investigated the effect of different anions on the immobilizaiton of heavy metals in soil with soluble phosphate. A multi-heavy metal polluted soil (total Pb: 2337, toal Cd: 21.4 and total Zn 391 mg/kg, respectively) was amended with calcium dihydrogen phosph...
An effective way to remediate heavy metal polluted soils is phosphate amendments. This work investigated the effect of different anions on the immobilization of heavy metals in soil with a soluble phosphate. A multi-heavy metal polluted soil (total Pb: 2337, total Cd: 21.4, and total Zn: 391 mg·kg-1) was amended with calcium dihydrogen phosphate (C...
To assess the effect of different amendments on the immobilization of Pb and Cd in polluted soils, a lead smelting polluted calcareous soil (Pb=2337 mg.kg-1, Cd=21.4 mg.kg-1) was amended with potassium dihydrogen phosphate (PDP), calcium dihydrogen phosphate (CDP), lime, hydrochloric acid and phosphoric acid, ryegrass (Lolium perenne L. cv. Rainbow...
In order to investigate the effect of soil fertility on the immobilization of Pb in soil with soluble phosphate, S (organic carbon 4.43 g•kg-1, Olsen-P 3.36 mg•kg-1, electrical conductivity (EC) 0.126 mS•cm-1, SrCl2-Ca 3499 mg•kg-1) and F soils (organic carbon 8.16 g•kg-1, Olsen-P 17.2 mg•kg-1, EC 0.274 mS•cm-1, SrCl2-Ca 3668 mg•kg-1) were spiked w...
Phosphate has been widely as the most effective amendment for lead (Pb) in soil. Due to the limited phosphate rock resource, people are trying wastes or by-products as alternatives for phosphate. Honeycomb briquette combustion residue (HBCR) is a common solid waste in rural China. Our earlier work observed that HBCR could be used to immobilize Pb i...
Phosphorus (P) is both a macro-nutrient to plants and an effective amendment to reduce lead (Pb) toxicity in soil. Thus, in Pb-polluted soil with low P availability, P will act as a nutrient and meanwhile a Pb immobilizing agent. However, this has not been fully investigated. A soil with 2.50 mg kg-1 Olsen-P was spiked with soluble Pb and then amen...
Amendment of lead (Pb) polluted soils with water-soluble phosphate is an effective way to reduce phytoavailability of Pb. However, few researchers have studied the relation between dynamics of phosphorus and Pb availability in such processes. Soil spiked with 500 mg.kg-1 Pb was amended with calcium dihydrogen pyrophosphate (CDP) and potassium dihyd...
Spatial distribution of residual Olsen-P in farming Chaotu soil (Ustic Cambosols) after hole application of water soluble P fertilizer during corn growth, and its relationship with copper (Cu), manganese (Mn), lead (Pb) and Zn in North China Plain was investigated. After the harvest of corn, a 1.0 m×1.0 m area in the corn field was sampled with 10...
In this work, 53 soil samples (0~20 cm) were collected from urban area of Zhengzhou City and analyzed for selected physical and chemical properties. Soil organic carbon content ranged between 1.33~20.5 g/kg, averaged 8.01 g/kg; alkali-hydrolysable nitrogen ranged 8.30~142 mg/kg, averaged 46.4 mg/kg; Olsen-P ranged 2.40~70.4 mg/kg, averaged 21.8 mg/...
Lead (Pb) is one of the most common and toxic heavy metals in soil. Phosphorus (P) amendment is found to be the most effective way of immobilizing Pb in soil. However, application of large amount of P is both a waste of P resource and a threat of the environment quality. Honeycomb briquette combustion residue (HBCR) is a kind of solid waste in rura...
The experiment was conducted to investigate the effect of applying honeycomb briquette combustion residue (HBCR) on the speciation of soil phosphorous (P) and lead (Pb) availability. Pb-spiked (500 mg/kg Pb) or non-spiked soil was amended with water soluble phosphorus (P/Pb=4, mol/mol) and HBCR (2% of the dry soil weight), ryegrass (Lolium perenne...
Several lead smelting plants lie in the North China Plain (NCP). The topography of plain makes the lead (Pb) emitted from the smelters move farer compared with those in hilly area. The possible heavy metal pollution may be a health threat to nearby residents. Availability of heavy metals near a lead smelter and the possible influence of lead smelti...
In this experiment, when the strontium chloride-citrate acid extractant (0.02 M SrCl2-0.05 M citrate) was used for extraction of calcareous soils with calcium carbonate greater than 70 g kg(-1) , the filtrate was turbid. Furthermore, white precipitation appeared when this extract was used for phosphorus determination with the Murphy and Riley metho...
The loess region in northern China is an important area of apple (Pyrus malus L.) and pear (Pyrus communis L.) production due to its favorable soil and climate. In recent years, as the apple and pear production in this region rapidly increased, more orchards experienced iron deficiency chlorosis. However, information on soil nutrient status and fru...
Questions
Question (1)
Recently, we got some data about Pb concentration of corn grain samples and those of soil on which the corns grow. The samples were collected near a lead smelter, the Pb concentration in the soil ranged between 100-200 mg/kg. However, in some of the corn grain samples, Pb was not detected by graphite furnace AAS, and a negative correlation was found between these two concentrations. I am wondering if such low Pb concentrations in corn grain and such a relationship between Pb in soil and in corn grain is possible? Thank you for your comments!
