Ultra-trace Mercury Monitoring in Air

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 lt 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 (lt2.5 um) particulate
  bound mercury
• Detection limits of each unit lt2 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.