[Characteristics and influencing factors of microbial function in soils around a typical mining smelter].

Soil microorganisms were sensitive to heavy metal pollution, whose ecological effect on soil microbial community was impacted by the interaction of contaminated stresses and environmental factors. To explore the dominant factors governing those effects in heavy metal contaminated soil, field investigation was conducted for soil from different land use types in an area surrounding a typical mining smelter in Hunan Province. Soil microbial function parameters including microbial biomass carbon (MBC), basal respiration (BR), substrate-induced respiration (SIR) and nitrification potential (PNR) were used as measure endpoints for ecological effect to reflect soil carbon and nitrogen cycling.

[Serum Lipid Levels and Their Prognostic Significance in Patients with Multiple Myeloma].

Objective: To investigate the serum lipid levels and their prognostic significance in patients with multiple myeloma (MM).

Methods: A total of 87 newly diagnosed MM patients and 87 healthy controls in our hospital from January 2012 to April 2021 were selected. Serum lipid levels were compared between MM patients and healthy controls.

[Assessing the Lead Accumulation Risks of Wheat Grain by Developing a Source-Specific Accumulation Risk Assessment Model].

Characterizing the lead (Pb) transfer in the "source-soil-wheat" chain is of great importance for the prevention and control of the Pb accumulation risk in wheat grain harvested from the croplands of China. In this study, we used the Jiyuan City, northern China, as a case study to investigate the influence of contamination sources and soil factors on the accumulation of Pb in wheat grain. A site-specific source risk assessment model (SRAM), coupling the positive matrix factorization model, Freundlich-type function, and the Monte Carlo simulation method, was developed to estimate the risk of Pb accumulation in wheat grain harvested from different scenarios.

[Ecological risk assessment of contaminated soil using improved "Weight of Evidence"approach:A case study of electroplating site in Jingjiang, Jiangsu, China].

Ecological risk assessment of soil in contaminated sites provides the scientific basis for accurately developing soil quality standards, confirming remediation targets, and making safe use of contaminated soil. It thus is a critical mean to protect soil health and safety. "Weight-of-Evidence" (WoE) has been widely used in ecological risk assessment due to its systematic, integrated and scientific properties.

[Security Risk and Influencing Factors of Agro-Products in Farmland Soil Around a Typical Mining Smelter].

The security risks of heavy metal pollution in agro-products are becoming increasingly serious. This paper investigated the heavy metal contamination of farmland soils and agro-products around a typical mining smelter in Hunan province, and explored the influencing factors based on principal component and correlation analyses. The results showed that the soils were significantly contaminated by heavy metals, with a mean concentrations of Cd, Cu, Pb, and Zn of 9.

[Simulation Cadmium (Cd) Accumulation in Typical Paddy Soils in South China].

The simulation analysis of the migration path and soil accumulation trend of Cd in paddy soil systems could contribute to improved scientific and reasonable risk decision-making. In this study, based on a regional survey of environmental media in Youxian County, Hunan Province, a pollutant accumulation model (PAM) was built to predict the cumulative trend of Cd in paddy soils. Combined with Monte Carlo simulation, the PAM model was used to evaluate the effectiveness and sustainability of various remediation measures.

[Advances in ecological risk assessment of soil in contaminated sites].

With the rapid urbanization and industrial structure adjustment in China, many contaminated sites have been left for remediation. It is essential to develop and implement ecological risk assessment (ERA) before remediating contaminated sites at a large scale as well as sequential management. In this review, we discussed the key problems in ecological risk assessment of soils in contaminated sites focusing on scientific principles, frameworks, techniques, and approaches, including 1) the site-specific framework, 2) uncertainty of conceptual model, 3) toxic mechanisms of combined contamination in soil, 4) screening of assessment endpoints, and 5) development of assessing approaches and frameworks.

[Application of Antinuclear Antibody and Antinuclear Antibody Spectrum in Lymphoma Treatment].

Objective: To investigate the significance of antinuclear antibody and antinuclear antibody spectrum in the stage and prognosis of lymphoma patients.

Methods: 79 cases of lymphoma (lymphoma group) treated in the Second Affiliated Hospital of Fujian Medical University and 50 cases of healthy people (control group) were selected. Antinuclear antibodies (ANA) were detected by indirect innmunofluorescence and ANA spectrums were detected by linear Western blot, the expression level of ANA and ANA spectrum in the two groups were analyzed.

[Effect of a Mining and Smelting Plant on the Accumulation of Heavy Metals in Soils in Arid Areas in Xinjiang].

Arid and semi-arid regions in West China are ecologically fragile zones. Increasing attention has been focused on soil pollution triggered by mining and smelting in those areas. Nine heavy metals in the soil around a mining and smelting plant in Xinjiang were investigated using multivariate analysis, the geoaccumulation index, and GIS techniques.

[Prediction of Cd in vegetables and soil Cd threshold derivation based on transfer function.].

The construction of transfer function of cadmium (Cd) in the soil-vegetable system is important for risk management. This study investigated the Cd concentration in 745 paired soils and vegetable samples, aiming to determine the influences of major soil properties on uptake of Cd by vegetables, and to derive the soil Cd threshold for vegetable cultivation based on China foodstuff regulations. Results of species sensitivity distribution model showed that the Cd accumulation potential of leafy vegetables was greater than that of rootstalk vegetables.

[Variation Characteristics of Vegetables Cadmium Uptake Factors and Its Relations to Environmental Factors].

The consumption of vegetables is a probable cause of Cd exposure in several world areas including China.In this study,we selected the prefecture of Youxian,southern China,as a case to analyze the influences of various environmental factors on Cd accumulation in vegetables based on a large scale agricultural and climatologically survey and collection of 585 irrigation water and 625 paired soil-vegetables samples.The results showed the concentration of Cd differed greatly in the irrigation water,soil and vegetables.

[Comprehensive Risk Evaluation of Cadmium in Soil-rice System Based on Uncertainty Analysis].

Cadmium (Cd) can cause adverse health effects and is a subject of concern in rice consumption. The uncertainty analysis helps improve the accuracy in the risk assessment for Cd in soil-rice system. A regional investigation on Youxian prefecture, southern China, was conducted to analyze the Cd concentration in rice.

[Impacts of Industrial Zone in Arid Area in Ningxia Province on the Accumulation of Heavy Metals in Agricultural Soils].

With the transferring of the industry from the east coastal regions of China to the mid and west regions, those places once called "Clean Earth" in the arid north-west region are facing the contamination risks by industrial emission. In order to study the impacts of the industrial zone on the accumulation of heavy metals Zn, Cr, Ni, Mn, Co, Cu, Cd, Pb in agricultural soils, we collected the agricultural soil samples in a county in Ningxia province using GIS technology. Samples were collected in a belt way along the yellow river and expanding from the industrial zone as the center according to the main local wind direction.

[Effects of Rice Cultivar and Typical Soil Improvement Measures on the Uptake of Cd in Rice Grains].

Cadmium pollution of rice is a big problem in agricultural food safety. The accident "Cd rice" occurred last year in Youxian County, Hunan Province caused serious social panic. In this study, trials on "Cd rice" controlling techniques specific to the Cd pollution in paddy soil in Youxian were investigated.

[Correlation between atmospheric PM2.5 concentration and meteorological factors during summer and autumn in Beijing, China].

Based on the monitoring data from 1st July to 31th October, 2008 and 2009 at the Beijing urban ecosystem research station, correlations between PM2.5 concentration and 6 meteorological factors were analyzed, including temperature, relative humidity, wind speed, vapour pressure, atmospheric pressure and wind direction. Main results showed that the dynamics of PM2.

[Urban ecological risk assessment: a review].

With the development of urbanization and the degradation of urban living environment, urban ecological risks caused by urbanization have attracted more and more attentions. Based on urban ecology principles and ecological risk assessment frameworks, contents of urban ecological risk assessment were reviewed in terms of driven forces, risk resources, risk receptors, endpoints and integrated approaches for risk assessment. It was suggested that types and degrees of urban economical and social activities were the driven forces for urban ecological risks.

[Sources and spatial distribution of typical heavy metal pollutants in soils in Xihu Scenic Area].

Due to the importance as a famous scenic area in China and its special geographical position, heavy metal pollution in soils in Xihu Scenic Area has attracted great concerns. Typical heavy metals in surface soils (0- 20 cm) in Xihu Scenic Area was investigated using the grid sampling method and statistical analysis and Aregis approaches. It was suggested that there were anthropogenic accumulations of Cu, Zn and Pb in soils, and they were the main heavy metal pollutants in Xihu Scenic Area.

[Effects of reclaimed water recharge on groundwater quality: a review].

Reclaimed water recharge to groundwater is an effective way to relieve water resource crisis. However, reclaimed water contains some pollutants such as nitrate, heavy metals, and new type contaminants, and thus, there exists definite environmental risk in the reclaimed water recharge to groundwater. To promote the development of reclaimed water recharge to groundwater and the safe use of reclaimed water in China, this paper analyzed the relevant literatures and practical experiences around the world, and summarized the effects of different reclaimed water recharge modes on the groundwater quality.

[Model simulation of the transportation, transformation and accumulation of synthetic musks in soils input through recycle water irrigation].

Environmental pollution of synthetic musks HHCB and AHTN, one type of PPCPs, have been attracted great attentions in latest years. One of the main input pathways of HHCB/AHTN to soils is reclaimed water irrigation. In this study, we monitored HHCB and AHTN in soils irrigated by reclaimed water and irrigation water and modeled the transportation and accumulation of HHCB and AHTN in soils using HYDRUS-1D.

[Modeling the Cd accumulation in agricultural soil irrigated with reclaimed water].

Recent years, soil pollution of heavy metal has affected human life seriously, especially in farmland. Heavy metal pollution in farmland is mainly caused by irrigation, fertilizing and atmospheric fallout. As the character of heavy metal input in farmland is chronic and low dosage, application of model would be more suitable than routine methods to illustrate the dynamic changes of heavy metals in soil.

[Simulation of effects of soil properties and plants on soil water-salt movement with reclaimed water irrigation by ENVIRO-GRO model].

In order to promote safe irrigation with reclaimed water and prevent soil salinisation, the dynamic transport of salts in urban soils of Beijing under irrigation of reclaimed water was simulated by ENVIRO-GRO model in this study. The accumulation trends and profile distribution of soil salinity were predicted. Simultaneously, the effects of different soil properties and plants on soil water-salt movement and salt accumulation were investigated.

[Simulation of effect of irrigation with reclaimed water on soil water-salt movement by ENVIRO-GRO model].

As the conflict between water supply and demand, wastewater reuse has become an important measure, which can relieve the water shortage in Beijing. In order to promote safe irrigation with reclaimed water and prevent soil salinisation, the dynamic transport of salts in urban soils of Beijing, a city of water shortage, under irrigation of reclaimed water was simulated by ENVIRO-GRO model in this research. The accumulation trends of soil salinity were predicted.

[Effect of reclaimed water irrigation on soil properties and vertical distribution of heavy metal].

Utilization of reclaimed water is one of the important methods to alleviate water shortage. The effect of reclaimed water irrigation on soil is always a concern. To understand the effect of long time reclaimed water irrigation on soil, typical farmland irrigated with reused water was selected.

[Accumulation characteristics of arsenic in suburban soils of Beijing].

Various land uses and enormous environmental pressures are characteristics of suburbs. Full understanding of suburban soil pollution is necessary for urban planning and development. In this study, 167 surface soil samples (0-20 cm) located in suburbs of Beijing between the fifth and sixth ring road were collected based on the 3 km x 3 km grids.