Industrial age anthropogenic inputs of heavy metals into the pedosphere

Heavy metals have been increasingly released into our environment. We present here, for the first time, the global industrial age production of Cd, Cu, Cr, Hg, Ni, Pb, and Zn, and their potential accumulation and environmental effects in the pedosphere. World soils have been seriously polluted by Pb and Cd and slightly by Zn. The potential industrial age anthropogenic Pb, Hg, and Cd inputs in the pedosphere are 9.6, 6.1, and 5.2 times those in the lithosphere, respectively. The potential anthropogenic heavy metal inputs in the pedosphere increased tremendously after the 1950s, especially for Cr and Ni. In 2000, the cumulative industrial age anthropogenic global production of Cd, Cr, Cu, Hg, Ni, Pb, and Zn was 1.1, 105, 451, 0.64, 36, 235, and 354 million tonnes, respectively. The global industrial age metal burdens per capita (in 2000) were 0.18, 17.3, 74.2, 0.10, 5.9, 38.6, and 58.2 kg for Cd, Cr, Cu, Hg, Ni, Pb, and Zn, respectively. Acidification may increase the bioavailability and toxicity of heavy metals in the pedosphere. The improvement of industrial processing technology reducing the metal dispersion rate, the recycling of metal-containing outdated products, by-products and wastes, and the development of new substitute materials for heavy metals are possible strategies to minimize the effects of heavy metals on our environment.     

1980—2007年我国燃煤大气汞、铅、砷排放趋势分析

基于文献调研,对1980—2007年我国汞、铅、砷3种主要燃煤大气重金属排放清单进行归纳,计算了3种重金属的逐年平均排放量,并分析排放量与燃煤量的相关性、单位煤耗大气重金属污染物排放量的变化趋势及原因. 结果表明:1980—2007年我国燃煤大气汞、铅、砷排放量与燃煤量增长趋势基本一致,均呈显著正相关(R2分别为0.911、0.971、0.996),但燃煤大气汞排放量与燃煤量间的相关性却比铅、砷排放量与燃煤量的相关性小很多,这主要是燃煤电厂对汞协同脱除能力比对铅、砷强,以及电厂汞排放所占比例较大所致. 燃煤大气汞排放量在2005年后趋于稳定,而铅、砷排放量在2000年后快速增长,年均增速均超过10%,其中电厂和工业锅炉是重金属排放的重点行业. 在燃煤量不断增长的背景下,单位煤耗的大气汞、铅排放量均呈下降趋势,其中汞排放量在2005—2007年年均降低5.0%,铅排放量在1996—2007年年均降低1.7%. 这与我国主要燃煤行业除尘、脱硫、脱硝等大气污染控制装置对重金属的协同脱除能力不断增强有密切关系.      

宁波人为源VOC清单及重点工业行业贡献分析

宁波是我国华东地区的重要工业城市,也是长江三角洲南翼的经济中心.近年来,宁波工业活动的VOC排放及其对空气质量和人体健康的不利影响越来越受到关注.通过收集宁波市各类VOC人为源的活动水平数据,采用"自下而上"的估算方法,建立了宁波地区2010年人为源VOC的排放清单,并进一步分析了宁波市排放VOC的重点工业行业及其贡献大小.研究结果表明,宁波市2010年人为源的VOC排放总量为17.6万t,其中工业源、机动车排放源和居民源是宁波市人为排放VOC的主要来源,分别占总排放量的62.0%、17.2%和15.5%.而在工业源中,合成材料制造业、精炼石油产品制造业是宁波市两个重点VOC排放工业行业,其排放量分别占宁波VOC总量的18.6%和13.1%,反映出石油化工企业对宁波市VOC排放的影响程度.     

1990-2018年浙江省人为铅排放时空变化解析

随着工农业的高速发展,大量的人为铅排放到环境,引起了一系列的生态健康问题.本文以工农业集产区浙江省为案例,系统构建了18个铅排放源排放清单,其中新增添了纺织业、制革业、造纸业、秸秆利用、牲畜废物利用、化肥消费、农药消费等铅排放行业,估算了浙江省1990—2018年各污染源铅排放量,分析了其时空变异趋势.结果表明,浙江省前期（1990—2000）铅排放通量增长有限,其排放量仅约2500 t·a^-1,有色金属开采贡献了约55%;其后增长速度较快,到2014年以后达到较高的稳定值,约35000 t·a^-1,是1990年的14倍,铅酸蓄电池生产是其主要排放源,占比从14%增长到了80%.从排放的去向来看,98%左右的铅通过固废的形式进入环境,而进入大气和废水的只有2%和0.2%左右,其主要排放源分别为铅酸蓄电池生产、原煤燃烧、纺织业.而浙江省各个地区铅排放表现出较大的空间差异,各地区因工农业发展模式不一样,人为排放源也不一样.总体来看北部高于南部,尤其湖州、绍兴、舟山等地铅排放量较高.可见,浙江省人为铅排放形势仍然很严峻,控制好铅酸蓄电池生产固废资源化无害化处理是源头控制的重中之重,调整原煤燃烧将有利于降低大气铅排放,纺织业废水净化处理对缓解水体铅污染有重要意义.本研究不仅为浙江省铅污染治理提供了重要科学依据,同时也为铅污染源端防控提供了数据基础.     

Millennial mercury records derived from ornithogenic sediment on Dongdao Island, South China Sea

Two ornithogenic sediment cores, which have a time span of 1000 years and are influenced by red-footed booby (Sula sula), were collected from Dongdao Islands, South China Sea. The determined mercury concentrations of the two cores show similar and substantial fluctuations during the past millennium, and the fluctuations are most likely caused by the changes in mercury level of the ocean environment and in anthropogenic Hg emission. For the past 500 years, the mercury concentration in the red-footed booby excrement has a striking association with global anthropogenic mercury emission. The mercury concentration increased rapidly after AD 1600 in corresponding to beginning of the unparalleled gold and silver mining in South Central America that left a large volume of anthropogenic mercury pollution. Since the Industrial Revolution, the mercury level has increased at a fast pace, very likely caused by modern coal combustion, chlor-alkali and oil refining industries. The comparison of mercury profiles from different places on earth suggested that anthropogenic mercury pollution after the Industrial Revolution is more severe in Northern Hemisphere than in Antarctica.     

我国石油天然气行业大气汞排放预测及减排

基于2015年我国不同地区原油及天然气产量和区域分布的统计数据,利用联合国环境署确定的汞输入因子和输出因子,估算了我国石油开采、炼制环节以及天然气开采、燃烧环节中大气汞的排放量.同时,依据国家发改委发布的石油天然气发展"十三五"规划中制定的预测性指标,以2015年为基准年,针对2020~2030年期间的石油天然气生产加工行业大气汞排放量设定了3个阶段的减排目标,在此基础上计算了不同阶段内两大行业大气汞的减排量和排放量,为国家实现履行《水俣公约》提供基础数据支撑和参考.     

上海地区大气中氯化氢和颗粒氯排放源清单初步研究

氯自由基对于臭氧和二次气溶胶的生成贡献不容忽视.夜间颗粒相氯(Cl~-)可以通过与N_2O_5的复杂反应转化生成ClNO_2,其光解产生的氯自由基将显著影响大气污染的形成机制.本文以上海地区为案例,以2017年为基准年,收集了人为源活动水平数据,采用排放系数估算方法,首次建立了上海地区人为源氯化氢(HCl)和颗粒氯(Cl~-)的排放清单;并进一步结合模型计算海盐气溶胶排放的颗粒氯(Cl~-).结果表明,2017年上海市人为源和天然源排放的HCl和Cl~-分别为1207 t和820 t,其中,燃煤、工业、垃圾焚烧和秸秆燃烧产生的HCl排放量分别为327、134、722和24 t.燃煤源中的燃煤电厂和其它行业燃烧约占燃煤源排放的80%;工业源中水泥为HCl的最大排放源,约占工业源排放的51%;垃圾焚烧厂排放约占总HCl排放的60%,为最大的HCl排放源.燃煤、工业源、垃圾焚烧、秸秆焚烧、烹饪源和海盐的颗粒Cl~-排放量分别为82、153、498、47、39和0.6 t,燃煤源中的燃煤电厂占燃煤Cl~-排放的40%,供热、其他行业和家庭燃烧分别占燃煤Cl~-排放的24%、22%和14%;钢铁行业为工业源的主要Cl~-排放源,约占工业源排放的90%,垃圾焚烧厂占全部Cl~-排放的61%,烹饪源中餐饮企业为最主要排放源,占烹饪源的70%;天然源海盐的排放量极少,未占到总排放的1%.从空间分布来看,浦东新区、宝山、普陀、松江和金山排放的HCl和Cl~-占到全市人为源总排放的80%,为主要的HCl和Cl~-排放区域.本文研究建立的上海地区大气中氯化氢和颗粒氯排放源清单,对于深入研究氯化学机制对二次污染的影响提供了重要的数据参考.     

典型工业城市中小学降尘重金属风险评估和源解析研究

典型工业城市存在着教育区和工业区交错分布的现象,周围企业产生的降尘将直接对学校儿童健康产生危害。本文以中原地区的典型工业城市—焦作市为研究对象,通过采集焦作市6所中小学校30个降尘样,开展重金属污染特征、健康风险评价和源解析研究。结果表明,采样学校降尘中重金属Zn、Cu、As、Pb、Cr、Ni的浓度均超过了相应的土壤背景值,尤其是Pb和Zn超标达6.31和5.66倍;各金属元素地累积指数值由大到小依次为Pb、Zn、Ni、Cu、As、Cr、Co和Mn,其中Co、Mn属于无污染,Cu、As、Cr属于无污染-中度污染,Zn、Ni属于中度污染,Pb属于中度污染-强污染;通过手-口摄入重金属的非致癌风险要高于其他两种摄入途径;总非致癌风险排序为Mn>Cr>As>Pb>Co>Ni>Cu>Zn,其中Mn、Cr、As的非致癌风险均大于1,对儿童存在非致癌健康风险;各采样学校的非致癌风险顺序为杨庄小学>人民中学>万方小学>光明中学>希望小学>塔南路小学;As、Ni、Cr、Co的致癌风险均不高于安全阈值,致癌风险均在可接受范围之内;PMF源解析显示该研究区域降尘中重金属的主要来源为燃煤工业排放(32.5%)>汽车排放(25.7%)>工业制造(25.2%)>道路和工业降尘(16.7%)。     

Economic structural change,renewable energy development,and carbon dioxide emissions in China

As the world’s largest emitter, China’s reduction of carbon dioxide (CO2) emissions is crucial for the achievement of global temperature rise goals. In this paper, we employed input-output structural decomposition analysis and index decomposition analysis to assess the factors driving changes in China’s CO2 emissions from 2000 to 2018, with particular attention to the role of renewable energy development. Our results indicate that the slowdown of economic growth and rapid structural change, rather than the shifting fuel mix, were the major forces driving China’s recent slowdown of CO2 emissions ever since 2011. Despite the great importance attached to renewable energy development, non-hydro renewable has played negligible role in reducing China’s CO2 emissions. This suggests that China cannot simply rely on the large-scale development of renewable energies to achieve its Paris 2015 target and must make further drastic cuts that will help keep global temperature rise well below 2 °C above pre-industrial level. Major breakthroughs in scalable low carbon energy sources and technologies will be required, especially in the developing world.

     

中国煤炭环境成本内部化的经济影响分析

对煤炭开采、运输和使用各个环节的环境污染和生态破坏外部成本进行核算的基础上,运用GREAT-E模型对煤炭环境成本内部化政策给GDP、居民收入、产业结构和贸易竞争力等带来的影响进行了定量分析.分析结果表明,煤炭开采、运输和使用各环节分别进行的环境成本内部化对中国宏观经济的影响较为有限,GDP的下降在可承受的范围之内,即使是全生命周期的煤炭环境成本完全内部化也只导致GDP出现0.15%左右的轻微下降.煤炭环境成本内部化将促进劳动力和资本等要素从高耗能行业向低耗能特别是技术密集型和现代服务业部门转移,进而推动产业结构优化转型升级.在煤炭生产、运输和消费环节通过征收环境相关税费能够更直接地刺激生产部门的环境行为调整,降低煤炭的生产和消费量,进而减少环境污染和生态破坏.     

Mobilization of arsenic from contaminated sediment by anionic and nonionic surfactants

The increasing manufacture of surfactants and their wide application in industry,agriculture and household detergents have resulted in large amounts of surfactant residuals being discharged into water and distributed into sediment. Surfactants have the potential to enhance arsenic mobility, leading to risks to the environment and even human beings. In this study, batch and column experiments were conducted to investigate arsenic mobilization from contaminated sediment by the commercial anionic surfactants sodium dodecylbenzenesulfonate(SDBS), sodium dodecyl sulfate(SDS), sodium laureth sulfate(AES)and nonionic surfactants phenyl-polyethylene glycol(Triton X-100) and polyethylene glycol sorbitan monooleate(Tween-80). The ability of surfactants to mobilize arsenic followed the order AES SDBS SDS ≈ Triton X-100 Tween 80. Arsenic mobilization by AES and Triton X-100 increased greatly with the increase of surfactant concentration and p H, while arsenic release by SDBS, SDS and Tween-80 slightly increased. The divalent ion Ca~(2+) caused greater reduction of arsenic mobilization than Na~+. Sequential extraction experiments showed that the main fraction of arsenic mobilized was the specifically adsorbed fraction. Solid phase extraction showed that arsenate(As(V)) was the main species mobilized by surfactants,accounting for 65.05%–77.68% of the total mobilized arsenic. The mobilization of arsenic was positively correlated with the mobilization of iron species. The main fraction of mobilized arsenic was the dissolved fraction, accounting for 70% of total mobilized arsenic.     

长江经济带湖北省人为源VOCs排放清单及变化特征

以人为源挥发性有机物（VOCs）为研究对象,以5类源活动水平数据为基础,采用排放因子法建立了长江经济带湖北省2018年人为源VOCs排放清单,并进一步研究了2009~2018期间工艺过程源VOCs排放特征及变化趋势.结果表明,湖北省2018年人为源VOCs排放总量为6.52×10⁵ t,约占全国总排放量的6.41%;化石燃料固定燃烧源、工艺过程源、溶剂使用源、移动源和废弃物处理源对湖北省的贡献分别为3.26%、76.39%、4.54%、14.72%和1.09%.涉及9个行业45个子类的工艺过程源在VOCs排放中占比突出,其中武汉市和宜昌市的VOCs排放量较高.从经济水平和区域面积分别分析了各市州工艺过程源VOCs排放强度,天门市和神农架林区单位GDP的VOCs排放量较高,而武汉市、鄂州市和天门市单位面积VOCs排放量较高.2009年VOCs排放量从2.45×10⁵ t逐年递增,2015~2017年趋于稳定,最大排放量达7.01×10⁵ t,2018年VOCs排放量降至4.98×10⁵ t,与全国人为源VOCs排放趋势相同.化学原料及化学制品制造业、橡胶和塑料制造业是其变化的主要驱动力,10年间贡献分别为33.85%~51.55%和7.07%~38.13%.其中化学药品原药、化学农药原药生产在10年间对VOCs排放贡献占据重要优势,而泡沫塑料生产排放量变化大,在2015~2017年突增到2.00×10⁴ t以上.湖北省在国家及地方相关政策引导下,重点行业VOCs减排效果显著.     

Characteristics and anthropogenic sources of carbonyl sulfide in Beijing

Atmospheric mixing ratios of carbonyl sulfide (COS) in Beijing were intensively measured from March 2011 to June 2013. COS mixing ratios exhibited distinct seasonal variation, with a maximum average value of 849 ± 477 pptv in winter and a minimal value of 372 ± 115 pptv in summer. The seasonal variation of COS was mainly ascribed to the combined effects of vegetation uptake and anthropogenic emissions. Two types of significant linear correlations (R² > 0.66) were found between COS and CO during the periods from May to June and from October to March, with slopes (ΔCOS/ΔCO) of 0.72 and 0.14 pptv/ppbv, respectively. Based on the emission ratios of COS/CO from various sources, the dominant anthropogenic sources of COS in Beijing were found to be vehicle tire wear in summer and coal burning in winter. The total anthropogenic emission of COS in Beijing was roughly estimated as 0.53 ± 0.02 Gg/year based on the local CO emission inventory and the ΔCOS/ΔCO ratios.     

浙江省人为镉排放源与汇时空格局解析

近年来,随着工农业的迅猛发展,大量的人为镉排放对我国生态环境安全构成了严重威胁,而污染源识别在污染治理中具有举足轻重的作用.为此,本文以工农业集产区浙江省为案例,通过文献调研,构建了浙江省人为镉工农业排放因子清单,并采用清单核算法对浙江省人为镉排放的源汇进行了估算.结果表明,浙江省人为镉排放在1995—2017年期间基本呈上升趋势,从1995年的39 t增加到2007的141 t,自2007年以后,浙江省的镉排放量达到了一定的峰值,其排放量在140 t·a^-1左右.其中75%以上的镉通过固废的形式排放进入环境,而进入大气和水体的镉分别约占15%和10%.在所有排放源中,原煤燃烧的镉排放贡献率最大,占总排放量的50%以上;其他排放源从大到小依次是钢铁生产、有色金属冶炼、造纸生产、水泥生产、塑料生产、有色金属开采、油料消费、磷肥生产、蓄电池生产、平板玻璃生产和陶瓷生产.各个地区镉排放表现出较大的空间差异,2015年杭州市和宁波市镉排放量已达到20 t以上,以杭州和宁波为中心的北部区域远远高于南部区域.因此,建议未来浙江省镉污染排放源头治理重点是减少原煤燃烧,其次是钢铁生产、有色金属冶炼、造纸生产、水泥生产,尤其北部区域.     

Arsenic retention and transport behavior in the presence of typical anionic and nonionic surfactants

The massive production and wide use of surfactants have resulted in a large amount of surfactant residuals being discharged into the environment,which could have an impact on arsenic behavior.In the present study,the influence of the anionic surfactant sodium dodecyl benzene sulfonate(SDBS) and nonionic surfactant polyethylene glycol octylphenyl ether(Triton X-100) on arsenic behavior was investigated in batch and column tests.The presence of SDBS and Triton X-100 reduced arsenic retention onto ferrihydrite(FH),enhanced arsenic transport through FH coated sand(FH-sand) columns and promoted arsenic release from the FH surface.With coexisting surfactants in solution,the equilibrium adsorbed amount of arsenic on FH decreased by up to 29.7% and the adsorption rate decreased by up to 52.3%.Pre-coating with surfactants caused a decrease in the adsorbed amount and adsorption rate of arsenic by up to 15.1% and 58.3%,respectively.Because of the adsorption attenuation caused by surfactants,breakthrough of As(Ⅴ) and As(Ⅲ) with SDBS in columns packed with FH-sand was 23.8% and 14.3%faster than that in those without SDBS,respectively.In columns packed with SDBS-coated FH-sand,transport of arsenic was enhanced to a greater extent.Breakthrough of As(Ⅴ) and As(Ⅲ) was 52.4% and 43.8% faster and the cumulative retention amount was 44.5% and 57.3% less than that in pure FH-sand column systems,respectively.Mobilization of arsenic by surfactants increased with the increase of the initial adsorbed amount of arsenic.The cumulative release amount of As(Ⅴ) and As(Ⅲ) from the packed column reached 10.8% and 36.0%,respectively.     

广州地区大气中C2～C9非甲烷碳氢化合物的人为来源

研究了广州地区13种人为源的C2～C9非甲烷碳氢化合物的源成分谱,及其在2002年夏季和冬季环境空气中的组成和变化规律.应用CMB 8.0受体模型对各人为源进行了源解析,得到了该地区人为源的平均浓度贡献率,分别为:乙烯化工厂29.7%,机动车24.2%,加油站12.1%,石油加工9.0%,电子加工8.3%,涂料工艺4.3%,工业垃圾焚烧2.4%,炼焦1.9%,油墨工艺1.1%,卷烟加工0.9%,制冷工艺0.7%.通过对6个受体点的源解析,结果表明乙烯化工工业点源和流动源为该地区NMHCs人为源的控制重点,面源是控制难点.     

A review on completing arsenic biogeochemical cycle：Microbial volatilization of arsines in environment

Arsenic （As） is ubiquitous in the environment in the carcinogenic inorganic forms, posing risks to human health in many parts of the world. Many microorganisms have evolved a series of mechanisms to cope with inorganic arsenic in their growth media such as transforming As compounds into volatile derivatives. Bio-volatilization of As has been suggested to play an important role in global As biogeochemical cycling, and can also be explored as a potential method for arsenic bioremediation. This review aims to provide an overview of the quality and quantity of As volatilization by fungi, bacteria, microalga and protozoans. Arsenic bio-volatilization is influenced by both biotic and abiotic factors that can be manipulated/elucidated for the purpose of As bioremediation. Since As bio- volatilization is a resurgent topic for both biogeochemistry and environmental health, our review serves as a concept paper for future research directions.     

甘肃省虚拟能行业分布及其省际贸易空间格局

基于投入-产出模型,研究了2007、2010、2012年甘肃省分行业能源的直接和完全能耗系数大小,以及省际贸易中虚拟能源的净输入和净输出特征.结果表明：2007~2012年,甘肃省人均虚拟能源消费量和能源生产总量均呈上升趋势,增幅分别为25.5%和28.2%,13.9%和13.6%,能源消费量增幅远高于能源生产总量.2007~2012年甘肃省虚拟能源在行业间的流动趋势变化明显,其中2007年虚拟能源主要流向工业和交通运输及仓储业,其值分别为2957.41和2336.35万t标准煤.2010年变化趋势与其一致,其值分别为2563.92和3094.53万t标准煤.2012年虚拟能源主要流向建筑业和批发零售及其他行业.其值分别为3690.54和3080.61万t标准煤.2007~2012年,甘肃省虚拟能源总量增加了28.9%,其中建筑业和批发零售及其他行业分别增加了94.7%和92.5%,农业,工业和交通运输及仓储业分别减小了24.4%,42.3%和91.6%.2007~2012年甘肃省虚拟能源呈净输入-净输出-净输入的贸易格局,主要输向河北、内蒙古、上海和陕西等能源总量较多且经济发达的地区,其中工业和交通运输及仓储业为主要输出行业,分别占总输出的36.6%和38.3%;输入主要来源于北京、辽宁、江苏、福建和宁夏等省区.因此,减少省内能源输出量,提高省外输入量对甘肃省经济和能源的可持续发展及利用至关重要.     

Effects of solution chemistry on arsenic(Ⅴ) removal by low-cost adsorbents

Natural and anthropogenic arsenic （As） contamination of water sources pose serious health concerns, especially for small communities in rural areas. This study assessed the applicability of three industrial byproducts （coal fly ash, lignite, and green waste compost） as the low-cost adsorbents for As（V） removal under various field-relevant conditions （dissolved oxygen, As（V）/Fe ratio, solution pH, and presence of competing species）. The physico-chemical properties of the adsorbents were characterized by XRD, XRF, FT-IR, and NMR analysis. Batch experiments demonstrated that coal fly ash could provide effective As（V） removal （82.1%-95%） because it contained high content of amorphous iron/aluminium hydroxides for As（V） adsorption and dissolvable calcium minerals for calcium arsenate precipitation. However, the addition of lignite and green waste compost was found unfavourable since they hindered the As（V） removal by 10%-42% possibly due to dissolution of organic matter and ternary arsenate-iron-organic matter complexes. On the other hand, higher concentrations of dissolved iron （comparing As（V）/Fe ratios of 1：1 and 1：10） and dissolved oxygen （comparing 0.2 and 6 mg/L） only marginally enhanced the As（V） removal at pH 6 and 8. Thus, addition of dissolved iron, water aeration, or pH adjustment became unnecessary because coal fly ash was able to provide effective As（V） removal under the natural range of geochemical conditions. Moreover, the presence of low levels of background competing （0.8 or 8 mg/L of humic acid, phosphate, and silicate） imposed little influence on As（V） removal, possibly because the high adsorption capacity of coal fly ash was far from exhaustion. These results suggested that coal fly ash was a potentially promising adsorbent that warranted further investigation.     

贵州煤中Pb浓度与同位素组成特征

燃煤型Pb已成为我国大气Pb最主要的人为来源,高精度Pb同位素是示踪燃煤Pb排放的强有力工具,但我国煤中Pb同位素的数据报道还较少。本文研究了贵州晚二叠纪不同矿区煤中的Pb浓度和Pb同位素比值。结果表明,样品Pb浓度为2.03~35.6mg/kg,几何均值5.4±3.3mg/kg,低于我国煤中Pb的平均值。煤中~(206)Pb/~(207)Pb为1.1959~1.2774,~(208)Pb/~(206)Pb为1.9500~2.0895,与U/Pb比、全硫、黄铁矿含量有显著相关性,说明煤中U含量和硫化物结合态Pb对Pb同位素组成的影响较大,偏放射性成因。比较分析了贵州省不同Pb来源的同位素组成,初步明确了大方、盘县、水城煤中的Pb主要来源于低温热液流体、玄武岩;毕节、安顺、桐梓煤中的Pb主要来源于陆源玄武岩、低温热液流体,少部分来自海相白云岩;六枝、瓮安煤中的Pb最主要来源于白云岩;晚二叠火山灰可能是兴仁煤的主要来源之一。本研究数据补充了贵州煤中Pb同位素数据的匮乏,并为利用Pb同位素示踪贵州地表环境Pb的来源奠定了基础。