Swedish-Chinese chemical pollution stress and risks research program in the Yangtze River Delta region

Transcription

1 Swedish-Chinese chemical pollution stress and risks research program in the Yangtze River Delta region Chemstrres: ett svensk-kinesiskt utvecklingsprojekt för miljöövervakning i Shanghairegionen Åke Bergman Chef för Swetox och ETV/KI

2 Aims of Chemstrres For a chemical-safe world A non-toxic environment! 2

3 o YRD Region comprises Shanghai, southern Jiangsu province and northern Zhejiang province of China. o It covers an area of 210,000 km 2 (All of Sweden is: 449,964 km 2). o The GDP of YRD is approx. 20% of the national GDP of China Introduction of PhD project with 6% of population.

4 Research Activities From: Snails to indoor dust Well-known POPs to Emerging Pollutants DDT to CPs Virgin sites to heavily contaminated locations 4

5 Ecotox project with the pond snail (Bellamya aeruginosa) Establishment of Bellamya aeruginosa as a research monitoring species in the Yangtze River Delta Fresh water mussel (Margaritifera margaritifera) Marine mussel Mytilus edulis Pond snail 5

6 Prof. Ma s lab Bellamya aeruginosa for monitoring Sex determination Age of first releasing newborn Average number of embryos carried by the female Generation time Reproduction Mean fecundity Sex ratio ( : ) the cultured population Biochemical parameters System used for in situ transplants of caged pond snails in Taihu6 Lake

7 Chemical analyses and simulation tests Approach 1: Sampling at the same sampling spot from year to year (individual sample) Approach 2: Sampling takes place at one arbitrarily selected sub-site Approach 3: Samples collected randomly from all available sites each year Yin et al, 2017, Environ Sci and Pollut Res, 24:1 12 7

8 Approach 2 Approach 3: Samples collected randomly from all available sites each year Approach 1: Sampling at the same sampling spot from year to year (individual sample) Yin et al, 2017, Environ Sci and Pollut Res, 24:1 12 8

9 Sewage sludge as a mirror of human activities - screening Meng et al., Environment Science & Technology,

10 Organic pollutants in Chinese sludge Concentrations of all analytes detected in Chinese sewage sludge (median and 95% confidence interval). 10

11 Organic pollutants in sludge from Shanghai 1e+7 Concentrations (ng/g dw) 1e+6 1e+5 1e+4 1e+3 1e+2 1e+1 1e+0 1e-1 1e-2 (74,600) (13,500) (460) (210) (82) (7.4) (2.0) PAEs TCS+TCC PFCs PBDEs Parabens DPs HBCDs ppm ppb ppt PAEs: phthalate esters; TCS + TCC: triclosan and triclocarban; PFCs: perfluorinated compounds; PBDEs: polybrominated diphenyl ethers; DPs: dechlorane plus; HBCDs: hexabromocyclododecane Yang et al. Chemosphere. 2011, 85, ; Yan et al. Chemosphere. 2012, 88, ; Meng et al. Sci. Total Environ. 2014, , ; Xiang et al. Chemosphere, 2015, 118,

12 Discharge of wastewater in China Sampling Strategy for Chinese Sewage Sludge Repository N=179 Data from China Statistical Yearbook (2014) and China Environment Bulletin ( )

13 Drinking water contaminants - a screening project Qinghui Huang, TJU 13

14 Phthalate concentrations (ng/l) in station water varies from eight brands of water vending machines Brands QM: QINMIAQM, GH: Ganghui, HY: Hanying, JB: Jingbo, AM: Qijia AM, EJ: Qinglang EJ, CG: Yiquan CG, YSK: Yisikai Concentration (ng/l) PAEs 6 DIBP DBP Σ conc. DIBP DBP % 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% DMEP DMP DEHP DEHP % 60% 100% 100% 80% 71% 83% 100% 67% 50% 80% 86% 57% 71% 100% DEP 67% QM GH HY JB AM EJ CG YSK % 50% 60% 40% 100% 100% 100% 71% 50% 0% 60% 57% 71% 57% 67% DHP 33% QM GH HY JB AM EJ CG YSK % 60% 67% 100% 60% 57% 71% 100% DNP 67% 100% 67% 50% 60% 71% 86% 100% QM GH HY JB AM EJ CG YSK

15 ORGANOTIN CONTAMINATION Five (5) of 7 organotin compounds were found in station water from different brands of water vending machines. Methyltins were dominated species while phenyltins were not found. TBT DBT MBT MMT DMT DBT MMT DMT (freshly purified tap water) Data from Q. Huang, TJU

16 Assessing persistent and bioaccumulative compounds in wildlife from the Yangtze River Delta Zhou YH, et al. Science of the Total Environment 2016, 554: ; Zhou YH, et al. Chemosphere 2016, 150: ;. Zhou Y, et al. Environmental Pollution 2017, 225:

17 Significant chlorinated paraffin contamination in wildlife sampled close to the mouth of Yangtze river Concentration range: <LOQ ng/g l.w.. i.e. up to 340 μg/g! Zhou et al., Science of the Total Environment (2016)

18 Highly chlorinated biphenyls NH WT 0 CB28 CB52 CB101 CB118 CB138 CB153 CB180 CB105 CB128 CB146 CB156 CB170 CB183 CB187 CB189 CB 194 CB-197 CB 198 CB 199 CB CB-202 CB CB 205 CB 206 CB 207 CB CB 209 Concentration (ng g -1 l.w.) Zhou et al., Chemosphere 150 (2016)

19 The unknowns in wildlife Indicated but structurally not confirmed Emerging, indeed Reason: Lack of authentic reference standards Zhou et al., STOTEN (2016)

20 Mothers milk monitoring in the Yangtze River Delta Tromsö Sampling site Nanjing Yangzhou Taizhou Zhenjiang Nantong Changzhou Wuxi Suzhou Huzhou Jiaxing Hangzhou Bay Sweden Hangzhou Shaoxing Ningbo Zhoushan Norway Stockholm Taizhou Yangtze River Delta 20

21 Projektgrupp Från Tongji-universitetet: Yanling Qiu, Jianfu Zhao, Dr. Daqiang Yin, Dr. Zhiliang Zhu; Qinghui Wang, Yihui Zhou, Xing-Zhou Meng, Zhenyang Yu, m.fl. Från Naturhistoriska riksmuséet Anders Bignert, Elisabeth Nyberg, Sara Danielsson Från Stockholms Universitet Lillemor Asplund, Åke Bergman, Magnus Breitholtz, Elena Gorokhova, Mafalda Castro, Ge Yin, Bo Yuan, Sune Eriksson, Anna Strid, m.fl. Referensgrupp från Kina och Sverige Från SE: Anders Glynn LV/SLU, Charlotta Järnmark (WWF), Bert Ove Lund (KemI), Tove Lundeberg (NV) Finansiering: VR/Formas/Forte inom ramen för programmet: Forskningssamarbete Kina 21

22 The firstchemstrres book Editors Å.Bergman A. Bignert Y Qiu G. Yin Epub file available 22

23 Tackar! 23