Samoeng district

Samoeng (Thai: สะเมิง) is a district (amphoe) of Chiang Mai province in northern Thailand.

Samoeng สะเมิง
District
Phra That Doi Nok
District location in Chiang Mai province
Coordinates: 18°50′53″N 98°43′57″E
Country	Thailand
Province	Chiang Mai
Seat	Samoeng
Area
• Total	898.0 km2 (346.7 sq mi)
Population  (2005)
• Total	23,236
• Density	25.9/km2 (67/sq mi)
Time zone	UTC+7 (ICT)
Postal code	50250
Geocode	5008

Geography

Neighbouring districts are (from the north clockwise) Mae Taeng, Mae Rim, Hang Dong, Mae Wang, Mae Chaem, and Galyani Vadhana of Chiang Mai Province and Pai of Mae Hong Son province.

Environment

Most years, air quality in Samoeng declines in March–April due to field burning and forest fires. In April 2019, Samoeng's air quality declined to levels heretofore unseen. To blame were forest fires in the hills surrounding the valley. Readings by the Chiang Mai Air Quality Health Index (CMAQHI) showed air quality index (AQI) scores in Samoeng's tambon Yang Moen had exceeded 500, the highest level the AQI can record.^[1][2] The AQI measures a spectrum of air pollutants including PM2.5, PM10, and carbon dioxide. PM2.5 is particulate matter (PM) with a diameter of less than 2.5 micrometres, or about 3% the diameter of a human hair. It can lodge in the lungs and enter blood vessels, leading to respiratory and cardiovascular disease.^[3]

History

The district was originally created in 1902 as a minor district (king amphoe). It was upgraded to a full district in 1908,^[4] downgraded to a minor district in 1938,^[5] and returned to its current designation as a full district in 1958.^[6]

Administration

The district is divided into five sub-districts (tambon), which are further subdivided into 45 villages (muban). Samoeng Tai is a sub-district municipality (thesaban tambon), which covers parts of tambon Samoeng Tai. There are a further four tambon administrative organizations (TAO).

No.	Name	Thai name	Villages	Pop.
1.	Samoeng Tai	สะเมิงใต้	11	5,366
2.	Samoeng Nuea	สะเมิงเหนือ	6	3,426
3.	Mae Sap	แม่สาบ	10	3,464
4.	Bo Kaeo	บ่อแก้ว	10	7,135
5.	Yang Moen	ยั้งเมิน	8	3,845

Economy

The Royal Project Agricultural Station Pang Da near Samoeng Tai^[7] conducts plant research, primarily on tropical fruit trees, temperate fruit trees such as the fig,^[8] flowers, beans, vetiver, rapid-growth trees, and medical cannabis.^[9]