Phước Long Air Quality Index (AQI)

Loading live AQI data...

Loading weather snapshot...

Loading historical AQI trends...

Phước Long, a small town nestled within the Bạc Liêu province of the Mekong Delta in southern Vietnam, occupies a geographically significant position within a region characterized by its intricate network of waterways and fertile agricultural lands. Located at approximately 9.4194° N, 105.3842° E, the town’s terrain is predominantly flat, typical of the delta’s alluvial plains, with an elevation barely exceeding a few meters above sea level. This low-lying geography makes Phước Long particularly vulnerable to flooding during the monsoon season and influences local air circulation patterns. The surrounding landscape is dominated by rice paddies, aquaculture farms (particularly shrimp and fish), and coconut plantations, forming a vibrant urban–rural gradient. Bạc Liêu River, a major artery of the Mekong Delta, flows nearby, impacting humidity levels and potentially influencing the dispersion of pollutants. While Phước Long itself is a relatively small urban center, it sits within a broader agricultural belt that extends across the delta. Larger industrial zones are located further north, towards Cần Thơ, but agricultural activities, including fertilizer use and burning of crop residues, contribute to localized air quality challenges. The town’s proximity to the coast also means it can be affected by sea breezes and occasional salt spray, which can impact particulate matter composition. The flat topography and limited natural barriers contribute to a tendency for pollutants to linger, especially during periods of stagnant air.

Phước Long’s tropical climate dictates a distinct wet and dry season, profoundly influencing its air quality profile. The wet season, typically spanning from May to October, brings frequent rainfall and high humidity, generally leading to improved air quality as precipitation washes away particulate matter. However, intense storms can temporarily worsen conditions due to wind-driven dust and debris. The dry season, from November to April, presents a more complex picture. Lower rainfall and reduced humidity create conditions conducive to the accumulation of pollutants. Temperature inversions, where cooler air is trapped beneath a layer of warmer air, are more common during this period, hindering vertical mixing and trapping pollutants near the ground. Agricultural burning, a common practice for land clearing and residue disposal, intensifies during the dry season, releasing significant amounts of smoke and particulate matter. Fog, particularly in the early morning hours, can also exacerbate the problem by trapping pollutants. The months of February and March often experience the poorest air quality due to a combination of these factors. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should limit prolonged outdoor activity during these periods. During the wet season, while overall air quality is generally better, heavy rainfall can still trigger flash floods and associated disruptions, impacting vulnerable populations. Maintaining indoor air quality through ventilation and air purification can be beneficial throughout the year, especially during peak pollution periods.