Contamination and human health risk assessment of heavy metal(loid)s in topsoil and groundwater around mining and dressing factories in Chifeng,North China

Chifeng is a concentrated mining area for non-ferrous metal minerals,as well as a key prevention and control area for heavyduty enterprises.This situation necessitates an efective ecological and human health risk assessment of heavy metal(loid)s driven by the wide distribution of metal ore processing,mining,and smelting factories in Hexigten Banner and Bairin Left Banner.We conducted surveys to assess the levels of heavy metal(loid)s(Cr,As,Pb,Cd,and Hg)in the topsoil and groundwater of the areas.The results indicated that the concentrations of As,Cd,and Pb in partial soil samples exceeded the environmental quality standards of Grade II.Based on contamination assessments,such as geoaccumulation indices and pollution indices,we inferred that Cd,Pb,and As were primary pollutants in topsoil.Potential ecological risks when considered as part of the average risk indices(RI)are up to 1626.40 and 2818.76,respectively,in the two areas.Comparative analysis revealed that Cd posed a very high potential ecological risk,followed by As.Moreover,the evaluation showed that the three exposure pathways of carcinogenic and non-carcinogenic risk followed a descending order:inhalation>ingestion>dermal contact,except for Pb.Arsenic in topsoil posed a potential non-carcinogenic risk to human health,while there were no adverse efects of As in groundwater.In addition,the average total carcinogenic risk for As in the two areas,as well as the risk of Pb in the topsoil of Bairin Left Banner and all the fve heavy metal(loid)s in groundwater,exceeded human tolerance.Pb–Zn mines caused higher human health risks.In addition,the tandem contamination of heavy metal(loid)s in soil and groundwater was not obvious.This research study provides a basis for pollution remediation to control heavy industry-induced ecological and health risks of heavy metal(loid)s.

Spatio-temporal Heterogeneity in the Performance of Rural Revitalization in Chifeng City of China:Based on a Range-wide EBM-GML Model

To solve the problems of rural revitalization performance research,a quantitative model of non-oriented range-wide EBM(Epsilon-Based Measure)-GML(Global-Malmquist)based on VRS(Variable Returns to Scale)conditions including non-desired outputs is constructed.A comprehensive spatio-temporal heterogeneity research index system of rural revitalization performance is also constructed.Taking the typical rural in Chifeng City as an example,the panel data from 2016-2020 are selected for empirical analysis,the conclusions and countermeasures are suggested as follows:1)In general,the rural revitalization performance of Chifeng City increases significantly during the five-year period,with significant spatio-temporal heterogeneity.The overall analysis shows that the overall performance value of rural revitalization in Chifeng City is 0.683 from 2016 to 2020.The highest performance value is 1 and the lowest performance value is 0.389.The performance growth rate increases year by year,with an average annual growth rate of 4.46%.2)From 2016 to 2020,the GML index of rural revitalization performance in Chifeng City is 1.174,showing an increasing trend.Based on the range of change of GML index,Chifeng City can be classified into three types:Continuous improvement,fluctuating improvement and fluctuating decline.3)Niujiayingzi,Guandongche,Zhaidamu,and Qiangangtai rural have the highest degree of technological progress.

Extension of the Louzidian Metamorphic Core Complex and Development of Supradetachment Basins in Southern Chifeng,Inner Mongolia,China

The Louzidian metamorphic core complex (LMCC) in southern Chifeng is located on the northern margin of the North China craton. Structural analyses of the LMCC and its extensional detachment system indicate that the LMCC experienced two-stage extension. The ductile regime experienced top-to-northeast shearing extension and the brittle detachment fault underwent top-down-outwards slipping. Between these two stages, a semi-ductile regime recorded the transition from ductile to brittle. The hanging wall of the detachment fault is similar to those classic supradetachment basins in western North America. Analyses of provenance and paleocurrent directions in the basins show that there were two filling stages. In the early stage, materials came from the southwest margin of the basin and the hanging wall of the detachment system and were transported from southwest to northeast; while in the late stage, deposits were derived from the footwall of the detachment fault and transported outwards to the two sides of the core complex. Since the filling period of the basins is from the late Jurassic to the late Cretaceous and it is coeval with the extension, the two filling stages reflect the two-stage history of the detachment fault. The large-scale late Jurassic underplating in the deep crust of the Chifeng area led to thickening and heating of the middle-upper crust and trigged the extension at depths and volcanism on the surface. In the early Cretaceous the upper plate of the detachment fault moved northeastwards and sediments were transported from southwest to northeast, while in the late Cretaceous the core complex was uplifted rapidly, the original basin was separated by the uplifted core, and lower-plate-derived debris was deposited in the adjacent upper-plate basins of the detachment fault. Evidentially, the development of the supradetachment basins were controlled by the extension and in turn the fillings in the basins recorded information of the extension, which has provided new evidence for kinematic interpretation of the Louzidian core complex.

Early-Middle Paleozoic Andes-type Continental Margin in the Chifeng Area, Inner Mongolia: Framework, Geochronology and Geochemistry and Implications for Tectonic Evolution of the Central Asian Orogenic Belt

Three tectonic units have been recognized in the Chifeng area, Inner Mongolia, from north to south, including the Qiganmiao accretionary prism, Jiefangyingzi arc belt and Sidaozhangpeng molasse basin, which formed an Andeantype active continent margin during the early to middle Paleozoic. The Qiganmiao accretionary prism is characterized by a mélange that consists of gabbro, two-mica quartz schist and basic volcanic rock blocks and heterogeneously deformed marble matrix. Two zircon U-Pb ages of 446.0±6.3 Ma and 1104±27 Ma have been acquired and been interpreted as the metamorphic and forming ages for the gabbro and two-mica quartz schist, respectively. The prism formed during the early to middle Paleozoic southward subduction of the Paleo Asian Ocean(PAO) and represents a suture between the North China craton(NCC) and Central Asian Orogenic Belt(CAOB). The Jiefangyingzi arc belt consists of pluton complex and volcanic rocks of the Xibiehe and Badangshan Formations, and Geochronology analysis indicates that the development of it can be divided into two stages. The first stage is represented by the Xibiehe Formation volcanic rocks, which belong to the subalkaline series, enriched LREE and LILE and depleted HFSE, with negative Eu anomalies, and plot in the volcanic arc field in discrimination diagrams. These characters indicate that the Xibiehe Formation results from to the continental arc magmatic activity related to the subduction of the PAO during 400–420 Ma. Magmatism of the second stage in 380–390 Ma consists of the Badangshan Formation volcanic rocks. Geochemistry analysis reveals that rhyolite, basaltic andesite and basalt of the Badangshan Formation were developed in continental margin arc setting. Moreover, the basaltic andesite and basalt display positive Sr anomalies, and the basalt have very low Nb/La values, suggesting that fluid is involved in magma evolution and the basalts were contaminated by continental crust. The sequence of Sidaozhangpeng molasse basin is characterized by proximity, coarseness and large thickness, similar to the proximity molasses basin. According to our field investigation, geochronological and geochemical data, combined with previous research in this area, a tectonic evolutionary model for Andes-type active continental margin of the CAOB has been proposed, including a development of the subduction-free PAO before 446 Ma, a subduction of the PAO and arc-related magmatism during 446–380 Ma, and formation of a molasse basin during 380–360 Ma.

Geochronology and geochemistry of magmatic rocks in the Dongzi–Changhanboluo Pb–Zn ore district in Chifeng,Inner Mongolia,and their relationship with metallogenesis

Bulk-rock elements,isotopes,and zircon U–Pb ages are reported for magmatic rocks in the Dongzi–Changhanboluo Pb–Zn ore district in Chifeng,Inner Mongolia,China.Zircon U–Pb dating identified four stages of magmatism:Late Silurian gabbroic diorite(*420 Ma),Middle Permian monzonite(*274 Ma),Late Jurassic quartz porphyry and ignimbrite,breccia tuff(153–158 Ma)and Early Cretaceous andesitic porphyrite(*127 Ma).Integrating field observations,geochronology,and element and isotope geochemistry indicated a complex petrogenetic history of the magmatic rocks.The gabbroic diorite may have been sourced from EM1-type mantle.The source of the monzonite may have been mantle metasomatized by melt from the subducting plate.The Jurassic volcaniclastic rocks formed in a medium-pressure,high-temperature environment,possibly in the background of crustal thickening in a syncollisional stage and an early postcollisional stage.During this process,shaly sedimentary rocks were brought into the deep crust and heated,followed by the rapid isostatic uplift of the crust,which caused partial melting of the sedimentary rocks.Quartz monzonite porphyry and quartz porphyry formed by partial melting of mantle metasomatized by subducted sediments,but the quartz porphyry experienced high-degree differentiation and evolution.The andesitic porphyrite has characteristics similar to those of Permian monzonite,indicating that its source area was also the zone of mantle metasomatized by subducted sediment.The late Silurian and Permian magmatic rocks in this area most likely formed against a continental arc background related to the subduction of the Paleo-Asian Ocean Plate beneath the North China Plate.The Late Jurassic magmatic rocks suggest that the northern margin of the North China Craton may have been in a postcollisional setting during the Late Jurassic,with no obvious crustal thinning.The Cretaceous andesitic porphyrite may have formed against the background of lithospheric extension and thinning.According to the comprehensive analysis of geological characteristics,diagenetic and metallogenic epochs,and Pb isotope data,the formation of ore bodies in the Dongzi–Changhanboluo ore district was closely related to the Jurassic quartz porphyry.

Investigation and Countermeasures of Medical Staff’s Demand for Nursing Workers in Chifeng

In order to understand the current demand of the medical staffs for nursing workers in Chifeng and to explore the practical management mode of nursing workers,150 doctors and nurses were randomly selected from general tertiary hospitals in Chifeng to participate in a questionnaire survey.The objective of this study was to investigate the demand of nursing workers in tertiary hospitals in Chifeng and the satisfaction of medical staffs toward the existing nursing work.The results of the investigation were analyzed to provide countermeasures and suggestions for the nursing work in Chifeng.

Protective effect of modified Huangqi Chifeng decoction(加味黄芪赤风汤)on immunoglobulin A nephropathy through toll-like receptor 4/myeloid differentiation factor 88/nuclear factor-kappa B signaling pathway

OBJECTIVE:To examine the nephroprotective mechanism of modified Huangqi Chifeng decoction(加味黄芪赤风汤,MHCD)in immunoglobulin A nephropathy(IgAN)rats.METHODS:To establish the IgAN rat model,the bovine serum albumin,lipopolysaccharide,and carbon tetrachloride 4 method was employed.The rats were then randomly assigned to the control,model,telmisartan,and high-,medium-,and low-dose MHCD groups,and were administered the respective treatments via intragastric administration for 8 weeks.The levels of 24-h urinary protein,serum creatinine(CRE),and blood urea nitrogen(BUN)were measured in each group.Pathological alterations were detected.IgA deposition was visualized through the use of immunofluorescence staining.The ultrastructure of the kidney was observed using a transmission electron microscope.The expression levels of interleukin-6(IL-6),monocyte chemoattractant protein-1(MCP-1),and transforming growth factor-β1(TGF-β1)were examined by immunohistochemistry and quantitative polymerase chain reaction.Levels of toll-like receptor 4(TLR4),myeloid differentiation factor 88(MyD88),and nuclear factor-kappa B(NF-κB)P65,were examined by immunohistochemistry,Western blotting,and quantitative polymerase chain reaction.RESULTS:The 24-h urine protein level in each group increased significantly at week 6,and worsen from then on.But this process can be reversed by treatments of telmisartan,and high-,medium-,and low-dose of MHCD,and these treatments did not affect renal function.Telmisartan,and high-,and medium-dose of MHCD reduced IgA deposition.Renal histopathology demonstrated the protective effect of high-,medium-,and low-dose of MHCD against kidney injury.The expression levels of MCP-1,IL-6,and TGF-β1 in kidney tissues were downregulated by low,medium and high doses of MHCD treatment.Additionally,treatment of low,medium and high doses of MHCD decreased the protein and mRNA levels of TLR4,MyD88,and NF-κB.CONCLUSIONS:MHCD exerted nephroprotective effects on IgAN rats,and MHCD regulated the expressions of key targets in TLR4/MyD88/NF-κB signaling pathway,thereby alleviating renal inflammation by inhibiting MCP-1,IL-6 expressions,and ameliorating renal fibrosis by inhibiting TGF-β1 expression.

赤峰市民族团结进步创建工作的现状及建议

近年来,赤峰市委、市政府坚持以习近平新时代中国特色社会主义思想为指导,深入贯彻落实习近平总书记关于民族工作的重要论述和对内蒙古重要讲话重要指示批示精神,始终把民族工作摆在首要位置。本文通过对赤峰市民族团结进步创建工作的现状进行调查,梳理赤峰市民族团结进步创建的经验和做法,提出以党建引领,民族工作管理规范化、推广模式复合化、宣传工作常态化、基层服务精细化的工作思路,不断提升各民族共同繁荣、共同发展的民族工作水平。

Strain and shear types of the Louzidian ductile shear zone in southern Chifeng, Inner Mongolia, China

The Louzidian ductile shear zone at the south of Chifeng strikes NE-SW and dips SE at low-medium- angles. This ductile shear zone is mainly composed of granitic mylonite, which grades structurally upward into a chloritized zone, a microbreccia zone, a brittle fault and a gouge zone. All these zones share similar planar attitudes, but contain different linear attitudes and kinematic indicators. Finite strain measurements were performed on feldspar porphyroclasts using the Fry method. These meas- urements yield Fulin indexes of 1.25―3.30, Lode's parameters of -0.535―-0.112 and strain parameters of 0.41―0.75 for the protomylonite, respectively. These data are plotted within the apparent constric- tional field in Fulin and Hossack diagrams. In contrast, for the mylonite, corresponding parameters are 0.99―1.43, -0.176―-0.004 and 0.63―0.82, respectively, and located in the apparent constrictional field close to the plane strain. The mean kinematic vorticity numbers of the protomylonite and mylonite by using three methods of polar Mohr circle, porphyroclast hyperbolic and oblique foliation, are in the range of 0.67―0.95, suggesting that the ductile shearing is accommodated by general shearing that is dominated by simple shear. Combination of the finite strain and kinematic vorticity indicates that shear type was lengthening shear and resulted in L-tectonite at the initial stage of deformation and the shear type gradually changed into lengthening-thinning shear and produced L-S-tectonite with the uplifting of the shear zone and accumulating of strain. These kinds of shear types only produce a/ab strain facies, so the lineation in the ductile shear zone could not deflect 90° in the progressively deformation.

黄芪赤风汤指纹图谱建立及主要成分含量测定

目的 建立10批黄芪赤风汤供试品溶液的指纹图谱,以及对方中芍药内酯苷、芍药苷、毛蕊异黄酮葡萄糖苷、芒柄花苷、毛蕊异黄酮、芒柄花素、黄芪甲苷7种主要成分进行测定。方法 采用Diamonsil C18(2)色谱柱(4.6 mm×250 mm,5μm);使用0.05%甲酸水(B)-5%四氢呋喃95%乙腈(D)为流动相进行梯度洗脱;流量:1 mL/min;柱温:23℃,进样量:10μL。基于HPLC-ELSD法,漂移管温度:60℃,柱温:30℃,进样量:20μL。结果 10批黄芪赤风汤供试品共标出16个共有峰,其相似度均在0.9以上,并对毛蕊异黄酮葡萄糖苷、芒柄花素、芍药苷、升麻素、5-O-甲基维斯阿米醇苷、毛蕊异黄酮、芍药内酯苷分别进行指认;基于HPLC-ELSD法:10批黄芪赤风汤其相似度均在0.903以上。且7种主要成分在各自的加样范围中线性关系良好,各自加样回收率RSD≤3%,含量为:芍药内酯苷(9.58±1.70)mg/g、芍药苷(8.36±0.78)mg/g、毛蕊异黄酮葡萄糖苷(0.77±0.11)mg/g、芒柄花苷(0.16±0.06)mg/g、毛蕊异黄酮(0.50±0.06)mg/g、芒柄花素(0.25±0.05)mg/g、黄芪甲苷(0.30±0.10)mg/g。结论 本研究建立的黄芪赤风汤指纹图谱分析方法可信度高、稳定,可用于黄芪赤风汤的质量控制及含量测定。

赤凤迎源针刺法对面神经损伤模型大鼠Ras/MEK/ERK信号通路的影响

目的探讨赤凤迎源针刺法对面神经超微结构、丝裂原活化的细胞外信号调节激酶(mitogen-activated extracellular signal-regulated kinase,MEK)、细胞外信号调节蛋白激酶(extracellular signal-regulated kinase,ERK)及血清KRas蛋白表达的影响。方法将SD大鼠随机分为空白对照组、模型组、常规针刺组、赤凤迎源针刺组,每组8只。除空白对照组大鼠正常饲养外,其他各组大鼠用面神经颊支压榨法诱导面神经损伤模型。造模成功后,予以干预2周。干预结束后,行电镜检查观察大鼠的面神经超微结构;通过HE染色观察面神经组织形态组织学变化;ELISA法检测血清KRas的表达水平;Western blot检测面神经组织MEK、ERK蛋白的表达水平。结果造模后,与空白对照组比较,另外3组大鼠动物行为学评分均明显升高(P<0.01)。针刺2周后,常规针刺组及赤凤迎源针刺组大鼠评分明显低于模型组(P<0.01),且赤凤迎源针刺组评分低于常规针刺组(P<0.01)。针刺2周后,与模型组对比,常规针刺组及赤凤迎源针刺组面神经轴突纤维排列较紧密,内质网较多,KRas蛋白表达明显升高(P<0.05),面神经MEK蛋白、ERK蛋白表达升高(P<0.05),且赤凤迎源针刺组均高于常规针刺组(P<0.05)。结论赤凤迎源针刺法可改善面神经损伤模型大鼠动物行为学,上调KRas、MEK及ERK表达水平,可能与激活Ras/MEK/ERK信号通路有关,从而修复面神经损伤。

赤峰喀喇沁旗大马鞍山地区文旅规划模式及用地路径

在国土空间规划背景下,基于文旅规划变革的需求,探讨文旅规划模式及用地路径。以赤峰喀喇沁旗大马鞍山地区为研究案例,根据以“生态为底线、市场为依托、项目为引擎、空间为载体、用地为保障”的五位一体文旅规划转变方向,从管区规划、前景分析、文旅项目库建立、文旅项目空间布局、文旅项目用地落位等5个方面构建国土空间规划体系下文旅规划的创新模式,并提出建设用地指标分区储备、建设用地指标利用、建设用地指标分步管控、点状供地指标储备、村庄点状供地指标利用等用地路径,以期促进文旅规划与国土空间规划的协同发展。

基于气象数据及体感温度的内蒙古赤峰油松人工林小气候分析

为揭示油松人工林小气候效应,以赤峰森林生态站南山生态园油松人工林为研究对象,采用定位观测获取2019-2021年林内温度、露点、相对湿度、风速及风速总量5个气象因子,通过对比风寒指数、热指数、体感温度3项指标及相关性分析,探究该研究区油松人工林小气候变化特征。结果表明:2019-2021年油松人工林内夏季温度降低,秋季温度回暖,2021年夏季温度均较2019、2020年有所下降,相较于2019年整体下降了2.14℃,秋季温度均较2019、2020年有所升高,相较于2019年升高了4.99℃;林内相对湿度增加,富含大量水汽,空气湿润,露点均较2019、2020年有所升高,夏季相较于2019年升高了0.15℃,秋季升高了8.69℃,相对湿度变化与露点一致,夏季整体升高10%,秋季整体升高17.48%;林内风速减小,风速及总量均较2019、2020年有所下降,夏季风速相较于2019年整体降低了0.02 m/s,风速总量减少了0.11 m/s,秋季风速降低了0.06 m/s,风速总量减少了0.23 m/s。

文旅融合背景下赤峰地区博物馆临时展览的办展趋势研究

伴随着文化产业与旅游产业之间的结合逐步深入,各地博物馆作为地域历史文化传承、保存和展示的重要载体,也将迎来运营模式的新变革,如何更好地发挥博物馆的文化价值,并助力经济发展,实现文化产业与旅游产业的齐头并进,成为行业内所关注的重点话题。文章以赤峰地区博物馆的实际情况为例,分析当前文旅融合对于博物馆发展的影响,以及办展趋势,并以此为抓手,为后续文旅融合时代下博物馆展览工作的开展提出针对性的意见和建议,旨在进一步提升博物馆在地区经济和文化发展、精神文明家园建设中的作用。

乡村振兴背景下推动赤峰市预制菜产业发展研究

预制菜产业推动了农村一二三产业的融合发展,成为农业转型升级的新业态、农民增收致富的新渠道。在乡村振兴背景下,预制菜产业的兴起为赤峰市的农业发展提供了新路径,也为实现乡村经济多元化提供了新的机遇。本文通过分析赤峰市预制菜产业发展现状、问题及挑战,提出相应的改进建议,以期为赤峰市预制菜产业的发展提供理论支撑和决策参考。

2004—2022年赤峰市气溶胶时空变化特征及气象影响因素分析

利用2004—2022年MODIS MAIAC高时空分辨率卫星遥感数据,分析赤峰市气溶胶光学厚度(AOD)时空变化特征。运用Theil-Sen Median趋势分析、Mann-Kendall检验法及Pearson相关系数法探讨了赤峰市气溶胶光学厚度的时空变化趋势及其与气象因子的相关性。结果表明:赤峰市AOD年均值在0.15~0.25之间,AOD低值区主要分布在西北高海拔地区,高值区主要分布在东南部低海拔地区。2004—2022年赤峰市AOD呈波动下降趋势。赤峰市AOD最低值在1月,最高值出现在7月。研究时段内,赤峰市AOD与月平均气温、月平均相对湿度呈显著性正相关关系,与月最大风速平均值的相关性较弱。

基于层次分析法的赤峰市地质灾害易发性评价

本文采用层次分析法对内蒙古自治区赤峰市地质灾害易发性进行评价,得出主要结论:基于已发生灾害点与本文地质灾害易发性分区结果比较,层次分析法适用于赤峰市地质灾害易发性评估;赤峰市地质灾害不易发区、低易发区、中易发区、高易发区的区域面积面积占比分别为37%、19.2%、30.6%和13.2%;赤峰市全域大部分地区处于地质灾害中、高易发区,主要分布在南北走向的丘陵山地地区;低易发区和不易发区主要分布在东部平原和西部高平原地区。

2009-2020年赤峰市松山区土地利用分析

厘清赤峰市松山区土地利用时空变化,可为该区土地资源的合理开发和生态环境保护提供科学依据。基于遥感影像数据,分析赤峰市松山区2009-2020年土地利用空间变化特征。结果表明:(1)赤峰市松山区主要以耕地、林地和草地为主,其中耕地以旱地为主。(2)2009-2020年,交通运输用地动态度最大(62.69%),种植园用地动态度最小(0.17%)。(3)2009-2020年除草地、水域及水利设施用地和城镇村及工矿用地2009-2020年面积减少,其他类型土地面积均呈现增加。研究结果可为赤峰市松山区制定土地资源可持续利用的战略目标提供参考。

Effect of modified Hangqi Chifeng decoction containing serum on the expression of Col Ⅳ,MMP-2,and TIMP-2 in glomerular mesangial cells induced by LPS

Objective To explore the effect of Modified Hangqi Chifeng Decoction(MHCD)on levels of collagen typeⅣ(ColⅣ),matrix metalloproteinase-2(MMP-2),tissue inhibitor of metalloproteinase-2(TIMP-2)in extracellular matrix(ECM)of glomerular mesangial cells(GMCs)in LPS induced mice.Methods Normal serum and telmisartan,high,medium,low dose MHCD containing

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As'China’s hometown of nonferrous metals',Chifeng City is the biggest concentration zone in Inner Mongolia’s nonferrous metals industry.Copper resources accounts for 17% of the whole region,lead resource accounts for 35%,zinc resource accounts for 30%,tungsten resource accounts for 42%,tin resource accounts for 88%,molybdenum resource accounts for 15%,gold resource accounts