Article
Environmental Sciences
Franziska C. Landes, Margaret Calcio, Jennifer M. Sobolewski, Kelcey Wallens-Logan, Anna Ledeczi, Yael Kiro, Louise Bolge, James Ross, Steven N. Chillrud, Brian J. Mailloux, Alexander van Geen
Summary: Contaminated soil in urban residential areas, particularly in Brooklyn and Manhattan of New York City, poses a serious risk to children's health due to high concentrations of lead (Pb). The study found that the Pb concentrations in backyard soils were three times higher than the outdated EPA soil hazard standard, while the Pb content in tree pits and public parks was significantly lower. The research also revealed that the Pb in the soil was highly bioavailable, indicating its potential to be absorbed by children.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Yehudit Harlavan, Moshe Shirav, Shimon Ilani, Ludwik Halicz, Olga Yoffe
Summary: This study investigates the source of lead pollution in soils in Haifa Bay, Northern Israel, using lead isotopic composition. The findings suggest that most samples have Pb and Zn Enrichment factors below 5, indicating a common anthropogenic source.
ENVIRONMENTAL POLLUTION
(2021)
Article
Geosciences, Multidisciplinary
Xian Chen, Rui-Zhong Hu, Xuan-Ce Wang, Liang Liu
Summary: The study finds that new continental crust formation involves different tectonic settings. By analyzing 75 samples of I-type granitoids, the time and lead isotopic ratios of new crust formation in the Songliao Block in northeast China and the Qinling area in North China were calculated, revealing a change from subduction to intracontinental extension as the tectonic setting for new crust formation in the Songliao Block. The method was also applied to determine the tectonic settings of new crust formation in the Jibei area and the Qinling area during the Paleoproterozoic. Therefore, this study demonstrates the potential of calculating the time and lead isotopic ratios of new continental crust to better understand its formation and the Precambrian tectonic evolution of continents.
JOURNAL OF ASIAN EARTH SCIENCES
(2023)
Article
Environmental Sciences
Jiangkang Qian, Qingyan Meng, Linlin Zhang, Die Hu, Xinli Hu, Wenxiu Liu
Summary: This study proposed an improved multi-source AHF model to accurately estimate the spatiotemporal distribution of anthropogenic heat flux (AHF) using diverse data sources and small-scale samples. The results showed that multi-source datasets and sophisticated algorithms could effectively reduce estimation errors and improve the accuracy of AHF distribution. The study also found significant seasonal variations in building metabolic heat and marginal fluctuations in industrial and transportation heat.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Minako Kurisu, Kohei Sakata, Mitsuo Uematsu, Akinori Ito, Yoshio Takahashi
Summary: This study aimed to distinguish aerosol Fe sources in the northwestern Pacific using Fe isotope ratios, finding that combustion Fe contribution is higher in air masses from East Asia and has higher solubility. Combustion Fe plays an important role in controlling the fractional Fe solubility in air masses from East Asia, while other factors are more influential in other areas. Observational data on Fe isotopes for aerosols are necessary for accurate estimation of combustion Fe emissions in atmospheric models.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Environmental Sciences
Jun-Sik Woo, Man-sik Choi, Yun-ho Song
Summary: The study investigated the accumulation, pathways, and sources of anthropogenic lead (Pb) in Ulleung Basin sediments. The results showed that leached Pb concentrations and isotope ratios were stable before 1930 but increased rapidly afterwards. The primary source of anthropogenic Pb was found to be atmospheric deposition of leaded gasoline and coals, but dumping materials added significant amounts of Pb to slope sediments after the 1990s.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Hana Johanis, Vaclav Tejnecky, Ondrej Drabek, Lubos Boruvka, Martin Mihaljevic
Summary: Research has shown that forest soils in the Czech Republic have isotopic signatures introduced by lead pollution, likely stemming from widespread atmospheric pollution, with floodplain forests showing different isotopic signatures potentially due to more materials from the river bed or surface runoff. These findings may assist in determining background values for soil lead and monitoring the state and health of forests in the Czech Republic for future conservation efforts.
WATER AIR AND SOIL POLLUTION
(2022)
Article
Geochemistry & Geophysics
Karyne M. Rogers, Adam P. Martin, Giovanni Pradel, Yuwei Yuan, Yongzhi Zhang, Rose E. Turnbull
Summary: A regional soil study in the Marlborough region of New Zealand characterized the geochemical baselines of different land-use types using stable isotopes and elements. The study focused on vineyard soils and found higher levels of certain elements and isotopes compared to forested and rural soils. The research also identified distinct natural geogenic inputs and compared the findings with urban and rural soils in other parts of New Zealand.
APPLIED GEOCHEMISTRY
(2022)
Article
Geochemistry & Geophysics
Hanhan Tang, Lianghui Guo, Guojiang Chen, Zhangrong Huang, Yuan Fang
Summary: The crustal thickness and Poisson's ratios are important factors in determining the crustal structure and deformation. We improved the estimation algorithm and used it to estimate crustal thickness and Poisson's ratios in eastern China. Our results indicate that crustal thickness increases gradually from east to west, and the Poisson's ratios vary with different tectonic blocks.
GEOPHYSICAL JOURNAL INTERNATIONAL
(2022)
Article
Meteorology & Atmospheric Sciences
Yang Cui, Wan Cao, Dongsheng Ji, Wenkang Gao, Yuesi Wang
Summary: The study in urban Beijing found that vehicle emissions contribute significantly to air pollution during the nighttime, indicating the important role of vehicular emissions in carbonaceous aerosols and PM2.5. This information can be utilized for pollution control in areas with high vehicular emissions.
ATMOSPHERIC RESEARCH
(2021)
Article
Environmental Sciences
Yu Tao, Jia Binyang, Wang Rui, Deng Yixiang, Zhuo Xiaoke, Cheng Zhonghua, He Chengda
Summary: The study revealed significant dissolution of soil carbonate in the Taihu watershed due to acidification, while sediment carbonate concentration in the lake showed an increasing trend. The Ca/Mg ratio in sediment varied in different environments, indicating distinct biogeochemical processes for calcium and magnesium during transportation and sedimentation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Soil Science
Yusef Kianpoor Kalkhajeh, Biao Huang, Helle Sorensen, Peter E. Holm, Hans Christian B. Hansen
Summary: This study quantified phosphorus accumulation in Chinese greenhouse vegetable production soils and found high phosphorus content in topsoils but lower total phosphorus content in subsoils. Phosphorus desorption dominated in highly saturated topsoils, while adsorbed phosphorus increased in the 80-100 cm subsoils with slightly larger adsorption capacity.
Article
Environmental Sciences
Yaling Huang, Feipeng Wang, Yue Li, Chen Yue, Yuting Zhang, Pei Zhou, Jingli Mu
Summary: This study comprehensively characterized the diversity, abundance, and spatial distribution of antibiotic resistance genes (ARGs) in a reservoir-river system in China. The results showed that urban river waters had a higher diversity of ARGs, indicating more serious antibiotic resistance pollution in areas with larger population densities. Dam construction reduced the richness and abundance of ARGs. Urban river waters also had a higher proportion of mobile genetic elements (MGEs) and a higher relative abundance of Proteobacteria that could promote antibiotic resistance.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Geosciences, Multidisciplinary
Chuanwei Zhu, Hanjie Wen, Yuxu Zhang, Zhilong Huang, Christophe Cloquet, Beatrice Luais, Tao Yang
Summary: The study of Cd isotopic geochemistry in the Huize deposit reveals different signatures in sphalerites formed at different stages, suggesting significant Cd isotopic fractionation during the mineralization process. The Cd isotopic compositions of large Zn-Pb deposits in the SYG area are influenced by the mixing of Emeishan basalts and sedimentary rocks, and indicate a negative correlation with 1/Cd, providing insights into ore genesis.
GEOSCIENCE FRONTIERS
(2021)
Article
Multidisciplinary Sciences
Nan Li, Yaoping Cui, Yiming Fu, Xiaoyan Liu, Yadi Run, Mengdi Li, Liangyu Chen, Haoming Xia, Heli Lu
Summary: The study highlights the significant contribution of China to global CO(2) emissions and the importance of terrestrial ecosystems in mitigating climate warming, with China's contribution to net emissions and radiative forcing being notable. As carbon emissions continue to rise, ecosystems play a crucial role in offsetting the warming effects of anthropogenic activities.
ANNALS OF THE NEW YORK ACADEMY OF SCIENCES
(2021)
