Case Study

Emissions control with real-time data at Ternium’s steel plants in Mexico

Ternium Mexico
Sector:

Need

Turning perimeter monitoring into an environmental management tool

Ternium Mexico, part of the Techint group and one of the largest steel producers in Latin America, operates in a highly intensive industrial environment. The metallurgical processes involved in steel manufacturing generate particulate and gas emissions that require rigorous, continuous and technically defensible control. In this regard, Ternium maintains a strict environmental policy across all its operations.

In this context, the objective was not limited to complying with Mexican environmental regulations. The company sought to strengthen its anticipation capabilities, improve environmental traceability and obtain objective information to protect both its workers and nearby communities.

The need was clear, to move from reactive oversight to strategic, data-driven control in real time.

The key was to have continuous information on air quality both inside and around the perimeter of its plants for the benefit of its workers and nearby communities, while also ensuring compliance with Mexican environmental regulations.

At Ternium, environmental monitoring has evolved from regulatory compliance to real-time operational intelligence.

The challenge, turning monitoring into a management tool

Ternium proposed the creation of perimeter environmental monitoring rings at its Las Encinas and Guerrero plants. The approach went beyond measuring concentrations and aimed to build a structured network capable of:

  • Detecting variations in real time.
  • Identifying patterns linked to production processes.
  • Correlating emissions with meteorological conditions.
  • Enabling rapid operational responses to deviations.

In an industry where incidents can evolve quickly, having continuous data is essential to reduce uncertainty and strengthen decision-making capacity.

The real-time perimeter monitoring network has enabled Ternium to move from reactive compliance to predictive emissions control, integrating air quality as a key operational variable in decision-making.
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Solution

A network of 13 Kunak AIR Pro stations was deployed, strategically distributed at critical points across both facilities. The stations operate autonomously using solar panels and batteries, ensuring continuous 24/7 operation even in complex industrial environments.

The network enables simultaneous monitoring of:

  • Particles: PM1, PM2.5, PM4, PM10, TSP and TPC
  • Gases: SO2, NO2, CO, and O3
  • Meteorological variables:
    • Temperature, relative humidity and atmospheric pressure
    • Wind speed and direction

Integration with Kunak AIR Cloud enables:

  • Real-time visualization.
  • Alert threshold configuration.
  • Automatic report generation.
  • Exportable historical analysis.
  • Concentration and wind correlation for source attribution.

The combination of environmental and meteorological data transforms measurement into operational intelligence.

From measurement to predictive control

The perimeter network has enabled Ternium to:

  • Detect specific trends in particle or gas concentrations.
  • Analyse patterns linked to particular industrial processes.
  • Correlate concentrations with wind speed and direction to determine the source of specific episodes.
  • Trigger corrective actions within reduced response times.

The alert system, configured in line with limits established by Mexican regulations, allows the company to act immediately in the event of potential exceedances.

Beyond compliance, the project has turned monitoring into a proactive anticipation mechanism.

Results

Control, traceability and operational optimization

With the network in place, Ternium now has a continuous and structured environmental overview of its facilities.

The environmental team now benefits from:

  • Objective and verifiable data.
  • A complete historical record.
  • Technical source attribution capability for specific episodes.
  • Documented evidence for audits and inspections.
  • A tool to optimize internal processes.

In highly complex industrial environments, the difference between reacting and anticipating is strategic.

Perimeter monitoring has evolved from a regulatory obligation into an operational asset.

Key project benefits

  • Continuous multiparameter monitoring in complex industrial environments.
  • Accurate identification of critical points and highest-impact activities.
  • Real-time alert system enabling immediate response.
  • Documented support for internal environmental performance tracking.
  • Operational optimisation based on objective environmental data.
  • Improved environmental traceability and transparency.

Project details

Customer: Ternium Mexico

User: Ternium Mexico

Location: Monterrey, Mexico

Sector:

Year: 2025

Parameters:

  • Particles: PM1, PM2.5, PM4, PM10, TSP and TPC
  • Gases: SO2, NO2, CO, and O3
  • Meteorological variables: temperature, relative humidity and atmospheric pressure
  • Wind speed and direction, essential for identifying the source of specific pollution episodes

Solutions

  • AIR ProProfessional air quality monitoring station
    Air quality monitor

    AIR Pro

    The most accurate air quality monitoring station

    SENSOR-BASED | BEST AVAILABLE ACCURACY

    Benefits

    • Multi-pollutant
    • Smart cartridge system
    • Fully autonomous
    • Real-time data
    • Proven accuracy
    See more
  • AIR LiteAir quality monitoring station
    air quality monitoring station

    AIR Lite

    The air quality station for hyperlocal monitoring.

    INDUSTRY GRADE DESIGN | HIGH ACCURACY

    Benefits

    • Rugged & compact design
    • Cartridges system
    • Fully autonomous
    • Built-in OLED display
    • Cost-effective
    See more
  • Particulate MatterReliable real-time data on suspended particles

    Particulate Matter

    Reliable information about particulate matter

    GASPLUG TECHNOLOGY | PATENTED DESIGN

    Specs

    • Optical particle counter
    • Up to R2 >0.9
    • Range: 0-1,000 | 0-2,000 | 0-10,000 ppb
    • Resolution: 1 μg/m3
    • 24 months of operating life
    See more
  • Sulphur dioxideReliable real-time data on SO2
    Sulphur_dioxide

    Sulphur dioxide

    Reliable information about sulphur dioxide

    GASPLUG TECHNOLOGY | PATENTED DESIGN

    Specs

    • Electrochemical
    • R2 >0.7
    • Range: 0-10,000 ppb
    • Resolution: 1 ppb
    • 24 months of operating life
    See more
  • Nitrogen dioxideReliable real-time data on NO2
    Nitreogen_dioxide

    Nitrogen dioxide

    Reliable information about nitrogen dioxide

    GASPLUG TECHNOLOGY | PATENTED DESIGN

    Specs

    • Electrochemical
    • R2 >0.85
    • Range: 0-12,000 ppb (Type A) | 0-500 ppm (Type B)
    • Resolution: 1 ppb (Type A) | 0.01 ppm (Type B)
    • 24 months of operating life
    See more
  • Carbon monoxideReliable real-time data on CO
    Carbon-monoxide

    Carbon monoxide

    Reliable information about carbon monoxide

    GASPLUG TECHNOLOGY | PATENTED DESIGN

    Specs

    • Electrochemical
    • R2 >0.85
    • Range: 0-12,000 ppb (Type A) | 0-500 ppm (Type B)
    • Resolution: 1 ppb (Type A) | 0.01 ppm (Type B)
    • 24 months of operating life
    See more
  • Ozone
  • AIR CloudAir quality software
    Air quality software - Kunak AIR Cloud

    AIR Cloud

    Multipurpose air quality software for professionals

    REAL-TIME DATA | ALWAYS UPDATED

    Benefits

    • Secure and condifential
    • Air quality reporting
    • Advanced data analysis and visualisation
    • Reliable data guaranteed
    • Data sharing and integration
    See more
Air quality monitor

AIR Pro

The most accurate air quality monitoring station

SENSOR-BASED | BEST AVAILABLE ACCURACY

Benefits

  • Multi-pollutant
  • Smart cartridge system
  • Fully autonomous
  • Real-time data
  • Proven accuracy
See more
air quality monitoring station

AIR Lite

The air quality station for hyperlocal monitoring.

INDUSTRY GRADE DESIGN | HIGH ACCURACY

Benefits

  • Rugged & compact design
  • Cartridges system
  • Fully autonomous
  • Built-in OLED display
  • Cost-effective
See more

Particulate Matter

Reliable information about particulate matter

GASPLUG TECHNOLOGY | PATENTED DESIGN

Specs

  • Optical particle counter
  • Up to R2 >0.9
  • Range: 0-1,000 | 0-2,000 | 0-10,000 ppb
  • Resolution: 1 μg/m3
  • 24 months of operating life
See more
Sulphur_dioxide

Sulphur dioxide

Reliable information about sulphur dioxide

GASPLUG TECHNOLOGY | PATENTED DESIGN

Specs

  • Electrochemical
  • R2 >0.7
  • Range: 0-10,000 ppb
  • Resolution: 1 ppb
  • 24 months of operating life
See more
Nitreogen_dioxide

Nitrogen dioxide

Reliable information about nitrogen dioxide

GASPLUG TECHNOLOGY | PATENTED DESIGN

Specs

  • Electrochemical
  • R2 >0.85
  • Range: 0-12,000 ppb (Type A) | 0-500 ppm (Type B)
  • Resolution: 1 ppb (Type A) | 0.01 ppm (Type B)
  • 24 months of operating life
See more
Carbon-monoxide

Carbon monoxide

Reliable information about carbon monoxide

GASPLUG TECHNOLOGY | PATENTED DESIGN

Specs

  • Electrochemical
  • R2 >0.85
  • Range: 0-12,000 ppb (Type A) | 0-500 ppm (Type B)
  • Resolution: 1 ppb (Type A) | 0.01 ppm (Type B)
  • 24 months of operating life
See more
Air quality software - Kunak AIR Cloud

AIR Cloud

Multipurpose air quality software for professionals

REAL-TIME DATA | ALWAYS UPDATED

Benefits

  • Secure and condifential
  • Air quality reporting
  • Advanced data analysis and visualisation
  • Reliable data guaranteed
  • Data sharing and integration
See more