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Initiatives in Manufacturing

Initiatives in Manufacturing

Preventing Water and Air Pollution

To preserve air and water quality, Mazda has specified voluntary emission standards stricter than the legal requirements and is ensuring appropriately low emissions of pollutants.


Air Pollution Prevention: Actively Adopting Fuels that Reduce Environmental Burdens

Mazda is continuing efforts to reduce the emission of sulfur oxides (SOx), nitrogen oxides (NOx), dust and soot, fine particles, vapors, and volatile organic compounds (VOCs).

In addition, Mazda is shifting the use of fuel oil to that of city gas and makes other efforts to actively adopt materials that reduce the environmental burden.


Conservation of Water Resources: Efforts to Clean Wastewater and Make Effective Use of Water Resources

When discharging wastewater to public waterworks, Mazda maintains voluntary standards stricter than the legal requirements, and manages discharge daily.

The Company also ensures wastewater cleanliness by properly treating water used for industrial processes, human hygiene, and other purposes.

With the exception of its Miyoshi Plant, nearly all the water Mazda uses in production processes at the plants and offices in Japan is water for industrial use*1. The Company does not use subsurface water, as this may cause ground subsidence. Mazda also makes effective use of water by collecting and storing rainwater for use in the Miyoshi Plant.

  • *1 One of the features of Mazda's water use is that we proactively implement Japan's Industrial Water Law at our headquarters plant in Hiroshima prefecture and at our Hofu Plant in Yamaguchi prefecture. The industrial water law is national in scope.
    We would like to explain the industrial water program briefly, as follows.
    Local government authorities continuously take in a fixed quantity of water from rivers. Companies which participate in the industrial water use program contract with local government authorities to receive a certain amount of water regularly.
    Mazda Motor Corporation discharges both purified water after it has been used and unused clean water through exclusive piping and returns it to rivers and the ocean.
    This process helps prevent flooding and promote biodiversity.
Overview of Wastewater Treatment System (Hiroshima Plant)
Overview of Wastewater Treatment System (Hiroshima Plant)

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