Zābolī Air Quality Index (AQI)

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Zābolī, nestled in the southeastern corner of Iran within the Sīstān va Balūchestān province, occupies a geographically challenging position. Located at coordinates 27.1283° N, 61.6722° E, the city sits at an elevation of approximately 152 meters (499 feet) above sea level, within the Hamun Lake basin. This basin, historically fed by the Helmand River, is now largely desiccated, contributing significantly to dust storm frequency. The surrounding landscape is dominated by arid plains and rugged mountains, part of the broader Iranian Plateau. Zābolī’s air quality is profoundly impacted by its location within this endorheic basin; without natural outlets for air masses, pollutants and dust become trapped. The city’s relatively small population of around 12,245 suggests limited heavy industry, but agricultural activity – primarily date farming and livestock raising – contributes to particulate matter. The urban-rural gradient is sharp, with vast stretches of sparsely populated desert surrounding the city. The drying of the Hamun Lakes has exposed vast salt flats, which are easily mobilized by wind, creating intense dust storms that carry particulate matter across the region, impacting Zābolī’s air quality and posing significant health risks. The prevailing winds, often originating from the southwest, carry these dust plumes directly over the city.

Zābolī experiences a harsh desert climate, with air quality fluctuating dramatically across the year. The most challenging period is undoubtedly the summer (June-August), when extremely high temperatures exacerbate dust mobilization from the dried Hamun Lake bed. Strong ‘bad-e sad’ winds, known as the 120-day winds, relentlessly sweep across the region, carrying massive amounts of dust and sand, severely impacting visibility and respiratory health. Winter (December-February) offers a temporary respite, with cooler temperatures and occasional rainfall suppressing dust, but temperature inversions can trap pollutants near the ground. Spring (March-May) sees a gradual increase in wind activity as temperatures rise, and agricultural practices like land preparation contribute to particulate matter. Autumn (September-November) is generally the most favourable season, with decreasing wind speeds and moderate temperatures. However, even during autumn, dust storms can occur. Sensitive groups – children, the elderly, and those with pre-existing respiratory conditions – should limit outdoor activity during summer and periods of high wind. Wearing masks (N95 or equivalent) is crucial during dust storms. Monitoring local weather reports and avoiding strenuous activity on windy days are essential preventative measures. The lack of consistent rainfall throughout the year means pollutant washout is infrequent, leading to prolonged periods of poor air quality.