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Pollutants when performing land management – strategies , sampling, analysis

Pollutants when performing land management – strategies , sampling, analysis. Per-Anders Bergqvist, PhD env . chemistry ExposMeter AB Sweden. Land management versus water. Harmful substances usually originate from land When changing the use of land, transport of pollutants to

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Pollutants when performing land management – strategies , sampling, analysis

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  1. Pollutants whenperformingland management – strategies, sampling, analysis Per-Anders Bergqvist, PhD env. chemistry ExposMeter AB Sweden

  2. Land management versuswater Harmfulsubstancesusuallyoriginate from land Whenchanging the useof land, transport ofpollutantsto waterwilloccur Water management in notonly a questionofquantity, m3 The qualityofwater has to be adressed! Polluted water has to be treated to proper quality It means investments In treatment system or else… In treating adverse effects in humans and ecosystem. Namibia COP11. ExposMeter AB, PhD Per-Anders Bergqvist

  3. Monitoring • Traditionalmonitoring shows occurenceofspecificcompounds at few sites (duetoexpensive sampling) • BUT • Weneedtodescribe all watershed pollution • AND • Identifysources • FOR • Eliminate or reduceeffluents and risk Namibia COP11. ExposMeter AB, PhD Per-Anders Bergqvist

  4. Origin of pollutants • Industrial activities • Use of chemicals depending of the land use • Household activities • Human use • Wastewatertreatment plants • Leachate of naturally occurring chemicals (metals, plant material) • Leachate from previous land use • Upstream activities Namibia COP11. ExposMeter AB, PhD Per-Anders Bergqvist

  5. Investigationofchemicals • Goal for the investigation • Strategy for investigation • Adjust sampling strategydueto real field situation – on site • Field sampling • Transport to proper laboratory • Hi-Tech analysis • Interpretation ofresults Namibia COP11. ExposMeter AB, PhD Per-Anders Bergqvist

  6. Sampling equipment • Integrative sampling • In situ concentration • Non-destructive transport to proper laboratory • Needofeasytouse, easyto transport, preservingmethods. ExposMeter is the producerof SPMD, POCIS, DGT etc passive sampling equipment. Namibia COP11. ExposMeter AB, PhD Per-Anders Bergqvist

  7. Sampling • 1-3 weeks absorption in water (TWA concentrations) • In situ preconcentationofupto 200 Liter water • In situ pretreatment for easieranalysis • Safe for transport (”no” customs problem) • No degradation or transformation ofchemicalsduring transport • No needoffrozenconditionsduring transport Namibia COP11. ExposMeter AB, PhD Per-Anders Bergqvist

  8. Transport ofsamples POCIS SPMD DGT • df 20 gram 30 gram 10 gram Namibia COP11. ExposMeter AB, PhD Per-Anders Bergqvist

  9. Target compounds • Industrial chemicals • Pesticides • Combustioncreatedchemicals • Metals • Industrial additives • Foodadditives • Personal hygienechemicals • Householdchemicals • Medical drugs • Illicitdrugs • Veterinarydrugs • Environmentally transformed chemicals • Nutrients, mainly P and N • etc Namibia COP11. ExposMeter AB, PhD Per-Anders Bergqvist

  10. Opportunities • Helpindustriestodescribeeffluents • Help land management before and afterintervension(positive and negative changes) • Identifysourcesofpollutants • Regularmonitoringtodescribe temporal and spacialchangesof pollution • To workwith sampling even in remote areas Namibia COP11. ExposMeter AB, PhD Per-Anders Bergqvist

  11. ExposMeter AB expertise • Sampling strategies • Field sampling • Producerof sampling equipment • Access to hi-tech specialised laboratories • Interpretation ofanalyticalresults • Quorious, experienced and goal oriented personnel Namibia COP11. ExposMeter AB, PhD Per-Anders Bergqvist

  12. ExposMeter AB like • To be included in ongoingprojects • To act as resource for ongoingproject • To participate in planning ofprojects • To distribute sampling equipment • To teach proper useof passive sampling • To maybe be a openresourceto be used by projects (central sponsored) Namibia COP11. ExposMeter AB, PhD Per-Anders Bergqvist

  13. Thankyou! • Come and discussyourneedswithus! • Per-Anders@exposmeter.se A lotof USELESS water! Namibia COP11. ExposMeter AB, PhD Per-Anders Bergqvist

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