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    • Propane
    • Silane
    • Styrene
    • Sulfur dioxide
    • Sulfur trioxide
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    • Total Reduced Sulfur
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    • Xylene
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    • Monitoring Background Levels
    • Monitoring in Traffic Tunnels
    • Particulates Monitoring
    • Surveillance at Ports
    • Urban Air Quality Monitoring
    • Urban Air Quality at Street Level

    Emissions Monitoring, Process Control

    • Aluminium Smelters
    • Cement Industry
    • Fertilizer Production
    • Flue Gas Treatment
    • Glass Manufacturing Industries
    • Mercury Monitoring
    • Power Plants
    • Sulfuric Acid Production
    • Waste to Energy Plants
    • See all

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  • Products

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    • DOAS Products for Gas Analysis
    • Turnkey Solutions
    • Laser Diode Systems for Gas Analysis
    • Particulate Monitors
    • Data Loggers
    • Supplementary Products

    Products for Emissions Monitoring, Process Control

    • DOAS Products for Gas Analysis
    • Turnkey Solutions
    • Laser Diode Systems for Gas Analysis
    • Monitoring Systems for Marine Applications
    • Dioxins and Carbon Dioxide samplers
    • Real Driving Emissions Monitors
    • Oxygen Monitors
    • Data Loggers
    • Supplementary Products

    Certificates

    • Bureau Veritas
    • CCAEPI, China (CCEP)
    • CCS, China
    • CSA Group, UK (MCERTS)
    • DNV
    • Lloyd's Register
    • RINA
    • Swedish EPA
    • TÜV, Germany
    • U.S. EPA
  • Knowledge Base

    OPSIS Blog

    Abbreviations

    Concentration Converter

    Monitoring Methods

    • The DOAS Principle
    • UV-DOAS Technology
    • FTIR-DOAS Technology
    • TDL Technology
    • Zirconium Dioxide Technology
    • Beta Absorption Technology
    • Long-term Sampling

    Compounds

    • 1,3-Butadiene
    • Acetaldehyde
    • Acetone
    • Acetylene
    • Ammonia
    • Benzaldehyde
    • Benzene
    • Bromine
    • BTX
    • See all
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  • What’s in the Air?

2025-04-17

What’s in the Air?

Blog OPSIS Air Pollution Part 1 – What’S In The Air

What is air pollution, where does it come from, and what can we do about it? Read our lates blog post to find out the answers to those questions >>
The article is a first in a short series addressing these topics.

News

2024-09-25

OPSIS Takes a Look at EU ETS and Carbon Dioxide Sampling

Read more

2024-09-03

SMM in Hamburg, Germany

Read more

2024-08-19

Improved air quality in the EU

Read more

2024-07-24

MEORGA MSR-Spezialmesse in Ludwigshafen, Germany

Read more

2024-04-04

MDC Asia 2024

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