Meghan Hodges
Hyderabad, India, is a rapidly growing industrial hub and a major high-tech centre. With a population of over 8 million people, it is the fifth-largest city in India. The city's air quality has been a growing concern, with fine particulate matter (PM2.5) concentrations exceeding World Health Organization (WHO) guidelines. While Hyderabad's air quality meets national standards, it falls short of international standards, ranking in the 'purple zone' on a colour-coded pollution map by the WHO. Various factors contribute to the city's air pollution, including road dust, vehicular emissions, industrial activity, and construction and demolition waste management.
| Characteristics | Values |
|---|---|
| Population | 6.9 million within city limits, 9.7 million in the metropolitan area (as of 2011) |
| Air Quality Index (AQI) | 72 (Moderate) as of 17 June 2025 |
| Worst AQI in the last 24 hours | 79 (Moderate) at 4:09 PM on 17 June 2025 |
| Best AQI in the last 24 hours | 70 (Moderate) at 8:09 AM on 17 June 2025 |
| Average PM2.5 in 2023 | 39.9 µg/m³ |
| Average PM2.5 in 2018 | 42.4 µg/m³ |
| Main sources of pollution | Vehicles, vehicle exhausts and road dust, industrial discharge, incineration of household rubbish, acid rain |
| Pollutants | Sulphur dioxide (SO2), nitrogen oxides (NOx), carbon monoxide (CO), carbon dioxide (CO2), particulate matter (PM2.5, PM10, black carbon (BC), organic carbon (OC)) |
| National standards | Meets Indian National Ambient Air Quality Standards in 2023 |
| WHO standards | Does not meet World Health Organisation (WHO) standards in 2023 |
Explore related products
What You'll Learn
- Hyderabad's air quality meets national standards but falls short of WHO guidelines
- Vehicular activity and industrial output contribute to air pollution
- The city's rapid urbanisation and economic growth have increased pollution
- The concentration of PM2.5 is 6.3 times the WHO annual guideline value
- The Telangana State Pollution Control Board claims pollution has decreased in recent years
Hyderabad's air quality meets national standards but falls short of WHO guidelines
Hyderabad, India, is a highly populated city, with over 8 million residents. As the fifth-largest city in India, it is a hub for heavy industry, research centres, and technology. The city's rapid urbanisation and economic growth have led to an increase in personal, public, and industrial transport, as well as industrial output, all of which contribute to air pollution.
Hyderabad's air quality is assessed through various measurements, including PM2.5, PM10, NO2, SO2, CO, and O3 levels. While the city's air quality meets Indian National Ambient Air Quality Standards, it does not meet the World Health Organization (WHO) guidelines.
In 2023, Hyderabad's average PM2.5 level was 39.9 µg/m³, close to the upper limit of 40 µg/m³ set by the Indian National Ambient Air Quality Standards. This was an improvement from 2022, when the PM2.5 level was recorded at 42.4 µg/m³. PM2.5 refers to fine inhalable particles that can enter the bloodstream and pose significant health risks. According to the WHO standards, Hyderabad is in the 'purple zone' on a colour-coded map, indicating high pollution levels.
Hyderabad's PM10 levels have also been a concern, with the city exceeding the standards for five years. However, the Telangana State Pollution Control Board (TSPCB) claims that overall pollution levels in Hyderabad have decreased in recent years. Measures to improve air quality include road paving, pothole repair, mechanical road sweeping, green belt development, and effective construction waste management.
The major sources of air pollution in Hyderabad are road dust (32%), vehicles (18%), secondary inorganic aerosols (16%), biomass burning (11%), construction and demolition waste (8%), garbage burning (7%), and industrial activity (5%). Meteorological conditions, such as temperature, precipitation, wind speed, and inversion heights, also influence the concentration and dispersion of pollutants.
Kyoto Summit: Effective Accountability for Pollution?
You may want to see also
Explore related products
Vehicular activity and industrial output contribute to air pollution
Hyderabad, a city of more than 8 million people, is an industrial hub in southeast India. The city has been growing rapidly, with an average growth rate of 9%. This rapid urbanization has led to an increase in personal, public, and commercial vehicles, as well as industrial output, contributing to air pollution.
Vehicular activity is a significant source of air pollution in Hyderabad. The increasing number of vehicles on the road, including a notable rise in two-wheelers, has led to higher emissions and, consequently, poorer air quality. The narrow lanes in the old part of the city also hinder the dispersion of pollutants. According to a study, vehicle exhaust accounts for about 30% of particulate pollution, with road dust contributing an additional 30-45%. Transport is the dominant source of NOx and VOC emissions, while diesel and coal combustion from the transport sector are the main sources of SO2.
Meteorological conditions also play a crucial role in air pollution concentrations. During periods of high precipitation or high-speed winds, emissions are dispersed and have less impact on pollution levels. In contrast, winter months with low temperatures, low inversion heights, and increased heating needs contribute to higher emissions and pollution concentrations. The period of Diwali further exacerbates the situation due to poor dispersion of pollutants by the dense cool air.
Industrial output is another significant contributor to air pollution in Hyderabad. While industrial areas are mostly restricted to the north-western part of the city, they still contribute a considerable amount of pollution. Coal combustion in the industrial sector, along with open waste burning, are significant sources of particulate pollution. Additionally, industrial coal combustion is a source of PM2.5 particles, which have a higher propensity to enter human respiratory tracts.
The combination of vehicular activity and industrial output has led to an overall increase in air pollution across Hyderabad, with levels exceeding national ambient air quality standards for particulate matter (PM). The growing population and economic activity in the city continue to pose challenges in managing air quality and maintaining healthy living conditions for its residents.
Strategies to Combat Waste Pollution
You may want to see also
Explore related products
The city's rapid urbanisation and economic growth have increased pollution
Hyderabad, the state capital of Telangana, is the fifth-largest city in India, with a population of over eight million people. The city has been experiencing rapid urbanisation and economic growth, which have contributed to an increase in pollution levels.
Hyderabad is an industrial hub in southeast India, with several heavy industries, research centres, and technology SEZ industries. It is also a major high-tech centre, attracting migration and leading to an increase in population density. The city's rapid urbanisation and economic growth have resulted in an increase in industrial output and transportation, contributing to higher pollution levels.
The primary sources of air pollution in the Greater Hyderabad Municipal Corporation area are road dust (32%), vehicles (18%), secondary inorganic aerosols (16%), biomass burning (11%), construction and demolition waste (8%), garbage burning (7%), and industrial activities (5%). The concentration of PM2.5, fine inhalable particles that pose a significant health risk by entering the bloodstream, has been a particular cause for concern. In 2023, the average PM2.5 level in Hyderabad was recorded at 39.9 µg/m³, only slightly below the maximum permissible limit of 40 µg/m³ set by the Indian National Ambient Air Quality Standards. This level is almost seven times the World Health Organization (WHO) annual PM2.5 guideline value, placing Hyderabad in the ''purple zone' on a colour-coded pollution map.
While Hyderabad's air quality meets national standards, it falls short of WHO guidelines. The city's pollution levels are influenced by various factors, including meteorological conditions. For example, during periods of high precipitation or high-speed winds, emissions from the city are dispersed and have less impact on pollution concentrations. In contrast, low temperatures and inversion heights during winter months can increase pollution levels by affecting heating behaviours and trapping emissions closer to the ground.
To address the issue of pollution, the Telangana State Pollution Control Board (TSPCB) has implemented several measures. These include end-to-end paving of roads, pothole maintenance, mechanical road sweeping, green belt development, and effective construction and demolition waste management. Despite these efforts, Hyderabad continues to face the challenge of balancing economic growth and urbanisation with the need to reduce pollution and improve air quality for its residents.
Oligopolies and Pollution: Mansur's Insight
You may want to see also
Explore related products
The concentration of PM2.5 is 6.3 times the WHO annual guideline value
Hyderabad, India, is a highly populated city, with over 8 million residents. It is a prominent industrial hub and a major high-tech centre, which has led to a rapid rate of urbanisation. The city's air quality is affected by emissions from vehicles, industrial output, and other sources.
PM2.5 refers to fine inhalable particles with diameters of 2.5 micrometres or smaller. These particles can be made up of various chemicals and are emitted from sources such as construction sites, unpaved roads, fields, smokestacks, and fires. They can also form in the atmosphere through complex chemical reactions. PM2.5 particles are of significant concern due to their impact on human health and the environment.
The World Health Organization (WHO) has recognised the detrimental effects of PM2.5 on health and has set guidelines for annual PM2.5 exposure levels. In 2021, the WHO updated its guideline, reducing the recommended limit to 5 μg m–3. This update was made due to the growing evidence of the negative impact of PM2.5 on health, even at low exposure levels. The guideline aims to promote the regulation and elimination of anthropogenic emissions to enhance global air quality.
Despite these guidelines, the concentration of PM2.5 in Hyderabad's air is 6.3 times higher than the WHO's annual guideline value. This means that the residents of Hyderabad are exposed to significantly higher levels of PM2.5 than what is considered safe by the WHO. The adverse health effects associated with PM2.5 exposure include premature mortality, increased hospital admissions for heart or lung-related issues, acute and chronic bronchitis, asthma attacks, and respiratory symptoms.
The high levels of PM2.5 pollution in Hyderabad highlight the urgent need for effective emission abatement technologies and targeted air quality regulations. It is crucial for the city to implement measures to reduce PM2.5 concentrations and protect the health and well-being of its residents.
e-Scooters: Green or Polluters?
You may want to see also
Explore related products
The Telangana State Pollution Control Board claims pollution has decreased in recent years
Hyderabad, the state capital of Telangana, is a 400-year-old city with a population of over 8 million people. It is an industrial hub and one of the fastest-growing cities in India, with a high population density of around 17,000 persons per sq. km. The city's rapid urbanization and increasing economic activity have led to a rise in transit vehicles, industrial output, and pollution levels.
Hyderabad's air quality is influenced by various factors, including vehicular emissions, industrial activity, and meteorological conditions. The city's pollution levels can be attributed in part to the increase in personal, public, and para-transit vehicles, as well as industrial output. Meteorological fields also play a crucial role in air pollution concentrations. For instance, during high precipitation or high-speed winds, emissions from the city are dispersed and have less impact on pollution levels. On the other hand, low temperatures and inversion heights during winter months can lead to higher emission concentrations and increased pollution.
To address these issues, the Telangana State Pollution Control Board (TSPCB) has implemented various measures to reduce pollution and improve environmental conditions in the state. The TSPCB, established in 1976, is a statutory authority responsible for enforcing environmental laws and rules within Telangana. The Board has a centralized laboratory and several zonal and regional laboratories equipped to perform analytical work in environmental science. It also has a separate Cleaner Production Section (established in 1998) that promotes cleaner production and waste minimization techniques in industries. This section organizes training programs, workshops, and demonstration projects to raise awareness about environmental issues among industries and stakeholders.
The TSPCB's efforts appear to be yielding results, as they claim that pollution levels in Hyderabad have decreased in recent years. The Board's initiatives, such as the Cleaner Production Section and environmental awareness campaigns, have likely contributed to this positive trend. However, it is important to note that the rapid urbanization and increasing economic activity in Hyderabad continue to present challenges in managing pollution levels and ensuring sustainable development in the city.
SPF: Pollution Protection or Urban Myth?
You may want to see also
Frequently asked questions
Yes, Hyderabad is a polluted city. Its overall air quality index is 123, with a PM2.5 concentration 6.3 times the World Health Organization's annual guideline value.
The major sources of air pollution in Hyderabad are road dust (32%), vehicles (18%), secondary inorganic aerosols (16%), and bio-mass burning (11%).
Measures taken to improve air quality include end-to-end paving of the roads with blacktop, maintaining pothole-free roads, mechanical road sweeping, green belt development, and effective construction and demolition waste management.
