Discovery of submicron diamonds within kimberlite in Liaoning Province, China and its significance

1997 ◽  
Vol 42 (11) ◽  
pp. 939-941
Author(s):  
Yanan Bao ◽  
T. V. Dubuchick ◽  
T. D. Liabchekov
Keyword(s):  
Liaoning Province

scholarly journals Source Apportionment and Health Risk Assessment of Metal Elements in PM2.5 in Central Liaoning’s Urban Agglomeration

Atmosphere ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 667
Author(s):  
Qingyuan Guo ◽  
Liming Li ◽  
Xueyan Zhao ◽  
Baohui Yin ◽  
Yingying Liu ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Coal Combustion ◽  
Urban Agglomeration ◽  
Liaoning Province ◽  
Soil Dust ◽  
Traffic Emission ◽  
Metal Elements ◽  
Adults And Children

To better understand the source and health risk of metal elements in PM2.5, a field study was conducted from May to December 2018 in the central region of the Liaoning province, China, including the cities of Shenyang, Anshan, Fushun, Benxi, Yingkou, Liaoyang, and Tieling. 24 metal elements (Na, K, V, Cr, Mn, Co, Ni, Cu, Zn, As, Mo, Cd, Sn, Sb, Pb, Bi, Al, Sr, Mg, Ti, Ca, Fe, Ba, and Si) in PM2.5 were measured by ICP-MS and ICP-OES. They presented obvious seasonal variations, with the highest levels in winter and lowest in summer for all seven cities. The sum of 24 elements were ranged from to in these cities. The element mass concentration ratio was the highest in Yingkou in the spring (26.15%), and the lowest in Tieling in winter (3.63%). The highest values of elements in PM2.5 were mostly found in Anshan and Fushun among the studied cities. Positive matrix factorization (PMF) modelling revealed that coal combustion, industry, traffic emission, soil dust, biomass burning, and road dust were the main sources of measured elements in all cities except for Yingkou. In Yingkou, the primary sources were identified as coal combustion, metal smelting, traffic emission, soil dust, and sea salt. Health risk assessment suggested that Mn had non-carcinogenic risks for both adults and children. As for Cr, As, and Cd, there was carcinogenic risks for adults and children in most cities. This study provides a clearer understanding of the regional pollution status of industrial urban agglomeration.

Geological, Fluid Inclusion, H-O-S-Pb Isotope Constraints on the Genesis of the Erdaogou Gold Deposit, Liaoning Province

2021 ◽  
Vol 32 (1) ◽  
pp. 103-115
Author(s):  
Fan Yang ◽  
Xuejiao Pang ◽  
Bin Li ◽  
Jingsheng Chen ◽  
Jilong Han ◽  
...  
Keyword(s):  
Fluid Inclusion ◽  
Gold Deposit ◽  
Liaoning Province ◽  
Pb Isotope

Variation of Q value before and after the 1999 Xiuyan, Liaoning Province, M=5.4 earthquake on the basis of analysis on attenuation dispersion of P waves

2005 ◽  
Vol 18 (5) ◽  
pp. 510-520 ◽  
Author(s):  
Xi-qiang Liu ◽  
Qing-wen Sun ◽  
Hong Li ◽  
Yu-yan Shi ◽  
Ai-dong Ji ◽  
...  
Keyword(s):  
Liaoning Province ◽  
Q Value ◽  
P Waves ◽  
Before And After
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