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Air Dispersion Study for the Liquid Petroleum Industry Complex (LPIC) Project at Suhar Port Industrial Area

Introduction

The Air Dispersion study presents a comprehensive assessment of air quality impacts associated with the Liquid Petroleum Industry Complex (LPIC) Project. This study evaluates emissions from various point sources, including heaters, flares, boilers, and incinerators, to ensure compliance with Omani environmental regulations.

Objective

The Study Report conducted assesses the impact on the air quality associated with the LPIC Project. The study aims to evaluate the emissions from various sources, ensuring compliance with Omani environmental regulations.

Methodology

The study utilized advanced air dispersion modeling techniques, covering a 15 km x 15 km area surrounding the Shell Chemical Unit (SCU) and the polymer plant. Key features of the methodology include

The image showcases a visual representation of a methodology comprising three interconnected elements. The first element, Meteorological Data Integration, depicts weather monitoring equipment in a desert-like environment with clear skies and wind indicators. The second element, Conservative Approach, highlights industrial facilities emitting smoke, symbolizing risk assessment amidst pollution, accompanied by computer screens displaying analytical data. The third element, Simulation Software, illustrates a futuristic digital interface with vibrant graphics, including an hourglass icon, weather symbols, and statistical charts on a desktop setup. All elements are unified under a green framework labeled Methodology, emphasizing structured analysis.
  • Meteorological Data Integration: Wind speed, temperature, and surface roughness were included for precise predictions.
  • Conservative Approach: Maximum predicted emissions simulated worst-case scenarios.
  • Simulation Software: Pollutant dispersion was analyzed under varied meteorological conditions.

Key Findings

The study focused on several air pollutants:

  • Particulate Matter (PM10)
  • Sulfur Dioxide (SO2)
  • Nitrogen Oxides (NOx)
  • Carbon Monoxide (CO)
  • Non-Methane Hydrocarbons (NMHC)
  • Unburned Hydrocarbons (UHC)

Both normal and emergency scenarios were assessed, and the results were benchmarked against Environmental Authority (EA) standards. Emissions under maximum operational conditions were found to be within the acceptable limits of the Oman Ambient Air Quality Standards

Conclusions

The air quality assessment for the LPIC Project determined that operational emissions will not significantly impact local air quality, and compliance with environmental standards is maintained. The modeling incorporated a comprehensive examination of both normal and emergency emission scenarios, accounting for conservative assumptions to ensure the reliability of the results.

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