Hassan Air Quality Index (AQI) Today

Why is Hassan AQI unknown today?

Hassan air quality today is being led by PM10 levels across 1 monitored stations. The sharpest pressure is around B.Katihalli, where the latest AQI is 0.

Station readings are fairly consistent across Hassan today, with only a 0 point spread.

Learn what high PM10 means and what level is considered safer in India.

About Hassan

Hassan is a city in the southern state of Karnataka, India, and serves as the administrative headquarters of Hassan district. Located in the Malnad region, it is known for its moderate climate and historical significance, with nearby Hoysala temples like Belur and Halebidu. The city has a population of around 150,000, making it a tier-2 urban center. It is often referred to as the 'Gateway to Malnad' due to its position between the coastal and interior regions. Hassan's economy is primarily agrarian, with coffee, areca nut, and spices being key crops. The city also has a growing industrial sector, with an industrial area and a software technology park. Notable landmarks include the Hassan Rama Temple and the Shettihalli Church. The city's character is a blend of traditional culture and modern development, with a relatively low pollution level compared to larger Indian cities.

Climate of Hassan

Hassan experiences a tropical savanna climate (Köppen: Aw) with distinct wet and dry seasons. Summers (March to May) are warm, with temperatures ranging from 22°C to 35°C. Winters (December to February) are mild, with temperatures between 15°C and 28°C. The monsoon season (June to September) brings heavy rainfall, averaging around 800 mm annually, primarily from the southwest monsoon. Humidity levels are high during the monsoon, often exceeding 80%, while the dry season sees lower humidity. Prevailing winds are from the west during the monsoon and from the east during the winter. The city's elevation (around 950 m) moderates temperatures, making it cooler than nearby plains.

Geography of Hassan

Hassan is situated on the Deccan Plateau at an elevation of approximately 950 meters above sea level. The terrain is undulating, with gentle slopes and fertile valleys. The Hemavati River, a tributary of the Kaveri, flows near the city, providing water for irrigation and domestic use. The surrounding region is characterized by lateritic soil, which is rich in iron and aluminum, supporting agriculture. Vegetation includes dry deciduous forests and scrubland, with some patches of moist deciduous forest in the nearby hills. The geography influences local weather by creating a rain shadow effect during the northeast monsoon, leading to drier conditions in winter. Air quality is generally good due to the city's elevation and vegetation cover, though dust from construction and agricultural burning can cause occasional spikes in particulate matter.

Economy & Industries in Hassan

Hassan's economy is predominantly agricultural, with coffee, areca nut, black pepper, and spices as major cash crops. The city is a major trading center for these commodities. The industrial sector includes food processing, textiles, and engineering units, with the Hassan Industrial Area hosting several small and medium enterprises. The Hassan Software Technology Park (STP) has attracted IT companies, contributing to the service sector. Tourism is also significant, driven by the nearby Hoysala temples at Belur and Halebidu, which are UNESCO World Heritage Sites. The industrial activity, particularly from agro-processing and manufacturing, contributes to local air pollution through emissions from boilers and vehicles. However, the overall industrial footprint is small compared to larger cities, resulting in relatively lower pollution levels.

Transport & Infrastructure in Hassan

Hassan is well-connected by road and rail. National Highway 75 (NH-75) passes through the city, linking it to Mangalore and Bangalore. State highways connect to other towns in Karnataka. The Hassan Junction railway station is on the Bangalore-Mangalore line, with daily express and passenger trains. The nearest airport is Mangalore International Airport (about 180 km away), while the domestic airport at Mysore (about 120 km) also serves the region. Public transport within the city includes buses operated by the Karnataka State Road Transport Corporation (KSRTC) and auto-rickshaws. There is no metro or BRT system. The city's transport infrastructure is adequate but not extensive, with traffic congestion being moderate.

What Causes Air Pollution in Hassan?

In Hassan, the primary pollution sources are likely vehicular emissions, construction activities, and biomass burning. The high PM10 levels (880.0 µg/m³) indicate significant dust from unpaved roads, construction sites, and agricultural activities. Hassan is an agricultural hub, and post-harvest stubble burning in surrounding fields can contribute to particulate pollution. Industrial activity in the region includes food processing, textiles, and small-scale manufacturing, which may emit PM2.5 and PM10. The lack of data from multiple stations makes it difficult to pinpoint exact sources, but the extreme PM values suggest a local event like a dust storm or heavy construction near the B.Katihalli station. Vehicular traffic on major highways passing through Hassan also adds to the pollutant load. Without additional monitoring, it is crucial to rely on general mitigation measures such as reducing outdoor activity during peak hours.

How Hassan’s Geography Affects Its Air Quality

Hassan is situated in the southern part of the Deccan Plateau at an elevation of about 950 meters. Its geography includes undulating terrain and proximity to the Western Ghats, which influence air quality. The Western Ghats act as a barrier, trapping pollutants during calm wind conditions, especially in winter. The region experiences moderate winds from the southwest during the monsoon, which help disperse pollutants. However, during dry months, the lack of ventilation allows particulate matter to accumulate. The presence of rivers like the Hemavati and Yagachi provides some moisture but does not significantly improve air quality. The current extreme PM10 levels at B.Katihalli may be exacerbated by local topography if the station is in a valley or near a construction site. Overall, Hassan's air quality is generally better than larger cities due to lower population density, but local sources can cause spikes.

Air quality across Hassan today

More polluted readings are clustered around B.Katihalli, while relatively cleaner readings are showing at B.Katihalli.

Most active stations are currently in the Good band, with 1 in Good.

Nearby Cities AQI Today

Compare air quality in nearby cities before you travel or make outdoor plans.

Who Should Take Extra Precautions?

• Children and elderly
• People with asthma or lung disease
• Pregnant women

Best Time to Go Outside in Hassan Today

Air quality is typically better during early morning hours (6–9 AM) and late evening. Avoid outdoor exercise during peak traffic hours.

Seasonal Air Quality Patterns in Hassan

Hassan, located in Karnataka, experiences a tropical climate with distinct seasons. The best air quality typically occurs during the monsoon season (June to September) when rainfall washes away pollutants. AQI during this period often ranges from 30 to 60. The worst air quality is observed in winter (December to February) due to temperature inversions that trap pollutants close to the ground, with AQI frequently exceeding 150. Summer (March to May) sees moderate AQI around 80-120 due to dry conditions and increased dust. Post-monsoon (October-November) can also have elevated PM levels from agricultural burning. However, the current data shows an anomaly with PM10 at 880, which is not typical for any season and suggests a data issue or an extreme local event.

How Hassan AQI Is Trending

Today's AQI is recorded as 0 at B.Katihalli, but this is likely erroneous given the PM10 concentration of 880.0 µg/m³. The 7-day average AQI is not available, so no trend comparison can be made. Nearby cities show moderate air quality: Chikkamagaluru (AQI 69), Madikeri (50), Mysuru (53), and Shivamogga (80). These values are significantly lower than what the raw PM10 at Hassan suggests. Without historical data, it is impossible to determine if today's reading is an outlier or part of a pattern. The discrepancy between AQI and pollutant levels indicates a need for data validation. Residents should rely on the PM10 value as a warning of hazardous conditions and take appropriate precautions.

Local Efforts to Improve Air Quality in Hassan

Hassan's local administration has implemented measures under the National Clean Air Programme (NCAP) to monitor and improve air quality. The Karnataka State Pollution Control Board (KSPCB) operates the monitoring station at B.Katihalli and conducts inspections of industrial units. Efforts include promoting public awareness about stubble burning, enforcing dust control at construction sites, and improving road paving to reduce fugitive dust. The city has also introduced green cover initiatives, such as tree plantation drives along major roads. However, the current data anomaly highlights the need for better sensor maintenance and additional monitoring stations to accurately assess air quality. Community initiatives like carpooling and use of public transport are encouraged, but their impact is limited without reliable data.

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Learn More About AQI in Hassan

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FAQs About Hassan AQI