Heavy-metal accumulation trends in Yixing, China: an area of rapid economic development

Wu, Shishan; Zhou, Shenglü; Li, Xingong; Johnson, William C.; Zhang, Hongfu; Shi, Jiangfeng

doi:10.1007/s12665-009-0321-0

Cited by 16 publications

(5 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Then, SILLS software [29] was used for data reduction and to perform the spike removal for all measured elements. The following isotopes were measured: 25 Mg, 27 Al, 29 Si, 34 S, 39 K, 43 Ca, 49 Ti, 53 Cr, 55 Mn, 57 Fe, 59 Co, 62 Ni, 65 Cu, 66 Zn, 75 As, 88 Sr, 205 Tl, 208 Pb and 209 Bi.…”

Section: La-icp-ms Determination Of Chemical Elementsmentioning

confidence: 99%

“…Many studies have successfully applied dendrochemical methods to investigate historical changes in the trace metal concentration in several polluted areas worldwide [14][15][16][17]. The history of pollution was also investigated through dendrochemical analyses in many locations in China, spanning several decades, analyzing different trace metals (see some examples of study cases in Table S1 [48][49][50][51][52][53][54][55][56][57][58][59] in the Supplementary Materials). In Asia, such studies are of utmost importance because only scarce air pollution data are available from only few air quality monitoring networks, mostly covering very short periods of time.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Chemical Elements Recorded by Quercus mongolica Fisch. ex Ledeb. Tree Rings Reveal Trends of Pollution History in Harbin, China

Ballikaya

Song

Guillong

et al. 2023

Forests

View full text Add to dashboard Cite

Rapid industrialization has led to a dramatic increase in air pollution. In China, the factors driving the abundance and composition of smog, particularly fine particulate matter, remain poorly understood, and short-term air pollution data are available from few air quality monitoring networks. Using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), chemical elements (Mg, Al, Si, S, K, Ca, Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Sr, Tl, Pb, Bi) were analyzed in Quercus mongolica Fisch. ex Ledeb. tree rings from Harbin, China, in latewood at 5-year resolution over the period 1965–2020. The temporal trend of some elements was influenced by physiological factors, by environmental factors such as pollution, or influenced by both. Mg, K, Zn, Cu, Ni, Pb, As, Sr and Tl showed changes in pollution levels over time. The signal of K, Zn, Ni, Cu and Pb in trees from Harbin statistically did not differ from those at the control site after the 2000s. Our analysis confirmed the success of the undertaken emission reduction measures, which lead to an improvement in China’s urban air quality after 2010. However, As increased from 2000 to 2020 in Harbin which is consistent with rising As concentrations in China. Our study proved that dendrochemistry is a reliable tool to monitor the long-term history of pollution and to contribute to extending instrumental records of pollution back in time.

show abstract

Section: La-icp-ms Determination Of Chemical Elementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Chemical Elements Recorded by Quercus mongolica Fisch. ex Ledeb. Tree Rings Reveal Trends of Pollution History in Harbin, China

Ballikaya

Song

Guillong

et al. 2023

Forests

View full text Add to dashboard Cite

show abstract

“…The total Cd content was measured using HF-HNO 3 -HClO 4 digestion and graphite furnace atomic absorption spectrometry. The total Zn content was measured using HF-HNO 3 -HClO 4 digestion and atomic absorption spectrophotometry (Wu et al 2010).…”

Section: Soil Samplingmentioning

confidence: 99%

Soil Heavy Metal Contamination in Rural Land Consolidation Areas in the Yangtze River Delta, China

Zeng

Zhou

et al. 2018

Journal of Environmental Engineering and Landscape Management

Self Cite

View full text Add to dashboard Cite

Due to the rapid urbanization of the Yangtze River Delta in China, large numbers of formerly rural residents have migrated to the cities. To adjust the structure of rural land use, the government has performed extensive land consolidation. Previous studies indicated that the land consolidation has affected farmland quality to some extent. However, the effect of the land consolidation on farmland heavy metal concentrations has rarely been reported. In this study, the Jintan District was used as an example, and 40 sampling sites of various consolidation types in 4 representative areas of rural land consolidation were selected. Soil samples were collected from these sites, and the heavy metal concentrations were analyzed. We used multivariate methods of correlation analysis and principal component analysis to study the conditions and sources of the heavy metal contamination in the soil. The results indicate that the mean concentrations of Cd, Hg, Ni, Cu, and Zn in the soil all exceeded the background values. The mean concentration of Cd was 0.409 mg/kg, and the enrichment factor (EF) was 4.54, making Cd the most prevalent heavy metal soil contaminant in the study area. The enrichment of soil heavy metals varied among the various representative areas. Suburban areas surrounding the central cities were mainly enriched in Hg, with an EF of 6.20. The comprehensive development zone displayed enrichment in Cd, with an EF of 7.79. The heavy metal concentrations in the soil also differed depending on the type of land consolidation. The reclaimed soil of rural settlements contained high levels of Cd and Zn, with EFs of 7.25 and 2.52, respectively, which were related to the land use before the land consolidation. The soil heavy metals of the study area were affected by both human activity and natural background contamination.

show abstract

“…1 Elms found in two public parks in downtown St. John's represent ring-porous wood ( Table 1). Species with this kind of structure are commonly used in dendrochemical studies because water transport usually involves the outermost annual rings only, which increases the temporal resolution of the dendrochemical record (Ault et al, 1970;Cutter and Guyette, 1993;Eklund, 1995;Rao et al, 2002;Prapaipong et al, 2008 andWu et al, 2010). Perhaps related to this characteristic is the relatively high Pb accumulation noted in the ring-porous wood of oak and ash (Kardell and Larson, 1978).…”

Section: Species Selectionmentioning

confidence: 99%

“…Aznar et al, 2008;Kirchner et al, 2008;Lageard et al, 2008;Saint-Laurent et al, 2010;Wu et al, 2010;Mihaljevič et al, 2011 andZuna et al, 2011). These methods offer multi-element and isotope analysis with low detection limits, but relatively large amounts of wood sample are needed.…”

Section: Introductionmentioning

confidence: 99%

Some considerations in the reconstruction of lead levels using laser ablation: lessons from the design stage of dendrochemistry study, St.John's, Canada

2015

View full text Add to dashboard Cite

Study of soils in St. John's, Canada showed elevated Pb levels representing a potential exposure risk for young children. Old trees growing in the city present a potential annually-resolved record of Pb levels over past centuries that provides important temporal and spatial dimensions to Pb exposure risk assessment. This paper reports the results of our analytical tests to develop a fast, reliable and cost-efficient method using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) for measuring Pb concentration in annual tree rings from available tree species. Our tests focused on approaches to sample preparation as they affect the laser ablation process, the relative merits of the ablation sampling method, and the response of our available tree species, which have contrasting wood structures, to laser ablation. The range of annual Pb concentrations (ppm) measured for each of the study species were as follows: spruce (0.18-6.42); elm (0.12-7.91); and horse chestnut (0.40-14.09). Our results demonstrate that the cutting procedure for preparing tree cores produced the most consistent Pb concentrations of the three methods, although they each displayed problematic anomalies. The selection of the best laser ablation technique appears to be highly dependent on study species and goals. In general, spot analysis permits detailed and targeted studies of tree-ring structures, but requires careful sampling attention for species with complex wood anatomy. The line scan method is ideal for reconstructing annually resolved element concentrations from trees and to some degree mitigates the complicating issue of intra-ring variability. Horse chestnut was determined to be the best of the available tree species because it exhibited a good response to laser ablation and produced the lowest intra-ring variations in Pb concentration.

show abstract

Heavy-metal accumulation trends in Yixing, China: an area of rapid economic development

Cited by 16 publications

References 26 publications

Chemical Elements Recorded by Quercus mongolica Fisch. ex Ledeb. Tree Rings Reveal Trends of Pollution History in Harbin, China

Chemical Elements Recorded by Quercus mongolica Fisch. ex Ledeb. Tree Rings Reveal Trends of Pollution History in Harbin, China

Soil Heavy Metal Contamination in Rural Land Consolidation Areas in the Yangtze River Delta, China

Some considerations in the reconstruction of lead levels using laser ablation: lessons from the design stage of dendrochemistry study, St.John's, Canada

Contact Info

Product

Resources

About