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Use of the lichen Xanthoria mandschurica in monitoring atmospheric elemental deposition in the Taihang Mountains, Hebei, China.

Liu HJ, Zhao LC, Fang SB, Liu SW, Hu JS, Wang L, Liu XD, Wu QF - Sci Rep (2016)

Bottom Line: Air pollution is a major concern in China.Epilithic foliose lichen Xanthoria mandschurica was sampled from 21 sites and analyzed using inductively coupled plasma mass spectrometry (ICP-MS).The results show that 1) eight elements (Cd, Cr, Cu, Mo, P, Pb, Sb and Zn) are of atmospheric origin and are highly influenced by the atmospheric transportation from the North China Plain, as well as local mining activities, while 2) the remaining 22 elements are primarily of crustal origin, the concentration of which has been enhanced by local mining and quarrying activities.

View Article: PubMed Central - PubMed

Affiliation: College of Life Sciences, Hebei University, Baoding, Hebei 071002, China.

ABSTRACT
Air pollution is a major concern in China. Lichens are a useful biomonitor for atmospheric elemental deposition but have rarely been used in North China. The aim of this study was to investigate the atmospheric depositions of 30 trace elements (Al, Ba, Ca, Cd, Ce, Co, Cr, Cs, Cu, Fe, K, La, Mg, Mn, Mo, Na, Ni, P, Pb, Rb, Sb, Sc, Sm, Sr, Tb, Th, Ti, Tl, V and Zn) in a region of the Taihang Mountains, Hebei Province, China using lichens as biomonitors. Epilithic foliose lichen Xanthoria mandschurica was sampled from 21 sites and analyzed using inductively coupled plasma mass spectrometry (ICP-MS). The results show that 1) eight elements (Cd, Cr, Cu, Mo, P, Pb, Sb and Zn) are of atmospheric origin and are highly influenced by the atmospheric transportation from the North China Plain, as well as local mining activities, while 2) the remaining 22 elements are primarily of crustal origin, the concentration of which has been enhanced by local mining and quarrying activities. These results clearly validate the applicability of lichens in biomonitoring of atmospheric elemental deposition and demonstrate the spatial pattern for air pollution in the region.

No MeSH data available.


Related in: MedlinePlus

Dendrogram obtained using Euclidean distance measure and Ward’s method on the basis of the Z-scored lichen element concentrations from 21 sites.Elements in black and red belong to group G1 and G2, respectively. The broken line signifies clusters formed at a Euclidean distance equal to 6.0.
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f2: Dendrogram obtained using Euclidean distance measure and Ward’s method on the basis of the Z-scored lichen element concentrations from 21 sites.Elements in black and red belong to group G1 and G2, respectively. The broken line signifies clusters formed at a Euclidean distance equal to 6.0.

Mentions: The Z-score standardized concentrations of lichen elements were subjected to CA (Euclidean distances, Ward’s criterion) to identify the correlations among them. Eight clusters were distinguished at a Euclidean distance of 6.0 (Fig. 2). Phosphorus was not significantly correlated with any other elements (p > 0.05), and thus was separated from other clusters. Elements in Clusters A, B, C and H belong to G1, whereas those in Clusters E, F and G belong to G2. Cluster D comprises four metals in G1 (Co, Mn, Ni and Th) and two metals (Cr and Mo) in G2.


Use of the lichen Xanthoria mandschurica in monitoring atmospheric elemental deposition in the Taihang Mountains, Hebei, China.

Liu HJ, Zhao LC, Fang SB, Liu SW, Hu JS, Wang L, Liu XD, Wu QF - Sci Rep (2016)

Dendrogram obtained using Euclidean distance measure and Ward’s method on the basis of the Z-scored lichen element concentrations from 21 sites.Elements in black and red belong to group G1 and G2, respectively. The broken line signifies clusters formed at a Euclidean distance equal to 6.0.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4835694&req=5

f2: Dendrogram obtained using Euclidean distance measure and Ward’s method on the basis of the Z-scored lichen element concentrations from 21 sites.Elements in black and red belong to group G1 and G2, respectively. The broken line signifies clusters formed at a Euclidean distance equal to 6.0.
Mentions: The Z-score standardized concentrations of lichen elements were subjected to CA (Euclidean distances, Ward’s criterion) to identify the correlations among them. Eight clusters were distinguished at a Euclidean distance of 6.0 (Fig. 2). Phosphorus was not significantly correlated with any other elements (p > 0.05), and thus was separated from other clusters. Elements in Clusters A, B, C and H belong to G1, whereas those in Clusters E, F and G belong to G2. Cluster D comprises four metals in G1 (Co, Mn, Ni and Th) and two metals (Cr and Mo) in G2.

Bottom Line: Air pollution is a major concern in China.Epilithic foliose lichen Xanthoria mandschurica was sampled from 21 sites and analyzed using inductively coupled plasma mass spectrometry (ICP-MS).The results show that 1) eight elements (Cd, Cr, Cu, Mo, P, Pb, Sb and Zn) are of atmospheric origin and are highly influenced by the atmospheric transportation from the North China Plain, as well as local mining activities, while 2) the remaining 22 elements are primarily of crustal origin, the concentration of which has been enhanced by local mining and quarrying activities.

View Article: PubMed Central - PubMed

Affiliation: College of Life Sciences, Hebei University, Baoding, Hebei 071002, China.

ABSTRACT
Air pollution is a major concern in China. Lichens are a useful biomonitor for atmospheric elemental deposition but have rarely been used in North China. The aim of this study was to investigate the atmospheric depositions of 30 trace elements (Al, Ba, Ca, Cd, Ce, Co, Cr, Cs, Cu, Fe, K, La, Mg, Mn, Mo, Na, Ni, P, Pb, Rb, Sb, Sc, Sm, Sr, Tb, Th, Ti, Tl, V and Zn) in a region of the Taihang Mountains, Hebei Province, China using lichens as biomonitors. Epilithic foliose lichen Xanthoria mandschurica was sampled from 21 sites and analyzed using inductively coupled plasma mass spectrometry (ICP-MS). The results show that 1) eight elements (Cd, Cr, Cu, Mo, P, Pb, Sb and Zn) are of atmospheric origin and are highly influenced by the atmospheric transportation from the North China Plain, as well as local mining activities, while 2) the remaining 22 elements are primarily of crustal origin, the concentration of which has been enhanced by local mining and quarrying activities. These results clearly validate the applicability of lichens in biomonitoring of atmospheric elemental deposition and demonstrate the spatial pattern for air pollution in the region.

No MeSH data available.


Related in: MedlinePlus