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Air Pollution Management (PM Dust)

Dust Management in East Water Construction Projects

East Water gives importance to environmental impacts from its business operations throughout the supply chain. From environmental risk assessments in the construction process, it was found that dust particles (PM10 and PM2.5) are a significant risk. These dust particles may affect the respiratory system and the health of both workers and surrounding communities.

In 2024-2025, East Water conducted dust particle measurements within construction project areas, dividing the measurements into three categories:

  1. Raw water pipeline construction projects
  2. Raw water pumping station construction projects
  3. Total water solution production system construction projects
  4. Industrial water production system construction project for Amata City Rayong 2 Industrial Estate
At present, East Water has begun random dust particle monitoring in three areas and plans to develop dust measurement for all projects in the near future.
Project PM10
(micrograms per cubic meter)
Standard values not exceeding 120 micrograms per cubic meter		 PM2.5
(micrograms per cubic meter)
Standard values
not exceeding 37.50 micrograms per
cubic meter
Before Work
(30 min)		 During Work After Work
(30 min)		 Before Work
(30 min)		 During Work After Work
(30 min)
1. The project to provide total water solution service to U-Tapao International Airport area 20-180 70-200 50-200 2-28 4-28 2-28
2. Nong Pla Lai Pumping Station Construction Project 57 72.33 33.33 16.78 18.44 10.00
3.Industrial water production system construction project for Amata City Rayong 2 Industrial Estate 87 138 108 20 32 20

From the measurement results of the three projects

From the measurement results of the three projects
90%
percent of the dust levels remained within the standard limits.

From the measurement results of the three projects, it was found that 90 percent of the dust levels remained within the standard limits. However, at certain times, some project dust levels exceeded the standards. (These dust particles may not necessarily be from actual operations, as in some cases, dust exceeded the standard before operations began, and some dust originated from nearby areas.) Nevertheless, East Water has standard controls and prevention measures in place as follows:

Control and Prevention Measures for Dust Pollution Caused by Construction Projects
  1. Set up enclosures around construction areas to prevent dust dispersion (in areas where enclosures are feasible).
  2. Pile dusty materials in covered or enclosed areas, or spray with water or use other appropriate methods.
  3. Spray water within and around construction areas to trap dust, and clean the site regularly to prevent dust from spreading outside.
Worker Safety Measures
  1. Do not work near large machinery (e.g., backhoes, dump trucks).
  2. Wear a mask or nose covering while in the work area.
  3. Avoid staying downwind during operations or in enclosed spaces.
  4. Inspect concrete cutters before use and ensure they use water as coolant.
  5. Do not allow workers to work close to machines that generate dust.