In 2024, the roadside areas in upcountry regions in Thailand recorded an average 24-hour noise level (Leq) of **** dB(A), indicating a slight decrease compared to the previous year. The areas where the average noise level exceeded the standard range were caused by many vehicles on the road and mostly large trucks.
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Pollution Control Department (Thailand). (July 14, 2025). Average levels of noise in roadside areas in the upcountry regions in Thailand from 2012 to 2024 (in A-weighted decibels) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 05, 2026, from /statistics/1296528/thailand-noise-levels-in-roadside-areas-in-upcountry-regions/
Pollution Control Department (Thailand). "Average levels of noise in roadside areas in the upcountry regions in Thailand from 2012 to 2024 (in A-weighted decibels)." Chart. July 14, 2025. ÌÇÐÄÆƽâ°æ. Accessed August 05, 2026. /statistics/1296528/thailand-noise-levels-in-roadside-areas-in-upcountry-regions/
Pollution Control Department (Thailand). (2025). Average levels of noise in roadside areas in the upcountry regions in Thailand from 2012 to 2024 (in A-weighted decibels). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 05, 2026. /statistics/1296528/thailand-noise-levels-in-roadside-areas-in-upcountry-regions/
Pollution Control Department (Thailand). "Average Levels of Noise in Roadside Areas in The Upcountry Regions in Thailand from 2012 to 2024 (in A-weighted Decibels)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 14 Jul 2025, /statistics/1296528/thailand-noise-levels-in-roadside-areas-in-upcountry-regions/
Pollution Control Department (Thailand), Average levels of noise in roadside areas in the upcountry regions in Thailand from 2012 to 2024 (in A-weighted decibels) ÌÇÐÄÆƽâ°æ, /statistics/1296528/thailand-noise-levels-in-roadside-areas-in-upcountry-regions/ (last visited August 05, 2026)
Average levels of noise in roadside areas in the upcountry regions in Thailand from 2012 to 2024 (in A-weighted decibels) [Graph], Pollution Control Department (Thailand), July 14, 2025. [Online]. Available: /statistics/1296528/thailand-noise-levels-in-roadside-areas-in-upcountry-regions/
