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Ultra-trace Mercury Monitoring in Air

Ultra-trace Mercury Monitoring in Air. Company History. Founded in 1989 to develop custom instrumentation for environmental analysis Developed first mercury product in 1993 Have since become world leaders in this growing market Products sold in more than 30 countries.

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Ultra-trace Mercury Monitoring in Air

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  1. Ultra-trace Mercury Monitoring in Air

  2. Company History • Founded in 1989 to develop custom instrumentation for environmental analysis • Developed first mercury product in 1993 • Have since become world leaders in this growing market • Products sold in more than 30 countries

  3. Why Measure Parts Per Quadrillion of Mercury ? • Mercury is one of the most potent neuro-toxins known • Bio-accumulates up the food chain by factors of greater than 10,000,000 • Levels are increasing worldwide • Long life in the atmosphere means that mercury emissions are of global concern

  4. Sources of Mercury • Mining & smelting (gold) • Waste incinerators • Battery manufacturing • Fluorescent lamps (manufacturing & disposal) • Chlor-alkali plants (pulp & paper) • Coal fired power plants

  5. Client Base • Governments (environmental monitoring) • Universities & research institutions • Mercury polluters • Commercial analytical laboratories • Power generation utilities

  6. Before Tekran Model 2537A • Traditional methods of atmospheric monitoring required manual sampling for long periods. (hours or days) • Subsequent analysis usually performed in a clean room environment

  7. Manual Ambient Air Sampling

  8. Manual Cartridge Analysis

  9. Model 2537A Analyzer

  10. Model 2537A Mercury Analyzer • Provides continuous TGM readings with update rate as low as 2.5 minutes • Detection limit < 0.1 ng/m3( 12 ppq ) • Automatic recalibration with internal permeation source • Capable of unattended operation for extended periods

  11. Flow Diagram of Model 2537A

  12. Chlor-Alkali Plant - USA • Plot of wind vs ambient mercury values • Two months of continuous monitoring • Plant is located 18 miles distant • Fish consumption advisories in effect

  13. Depletions of Mercury in the Arctic

  14. Companion Products • Model 1100 - Zero Air Generator • Eliminates need for separate zero air source • Model 1110 - Two Port Sampler • Mercury flux measurement • Model 1120 - Standard Addition Unit • QA/QC tool

  15. Companion Products • Model 1130 – Reactive Gaseous Mercury • RGM speciation unit differentiates between ionic (Hg2+) and elemental (Hg0) forms • Model 1135 – Particulate Mercury • Monitors fine fraction (<2.5 um) particulate bound mercury • Detection limits of each unit: <2 pg/m3

  16. Mercury Monitoring in the Field • Tekran analyzers are used routinely in some of the harshest locations on earth. • The equipment has demonstrated its ruggedness and reliability in countless applications.

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