Long-term exposure to air pollution can have profound and wide-ranging effects on human health. Pollutants and ground-level ozone can infiltrate the respiratory and cardiovascular systems. These harmful substances cause inflammation, oxidative stress, and cellular damage, leading to both chronic and acute health conditions. Over time, this exposure contributes to diseases affecting the lungs, heart, brain, and immune system, while also exacerbating pre-existing conditions. Vulnerable groups, such as children, the elderly, and individuals with underlying health issues, are at a higher risk. Keep reading as we share in detail how long term exposure to air pollution can affect your health.
Air pollution can irritate the airways and lead to chronic respiratory diseases such as asthma, chronic obstructive pulmonary disease (COPD), and bronchitis. Long-term inhalation of fine particles can penetrate deep into the lungs, causing inflammation, reduced lung function, and scarring, increasing susceptibility to respiratory infections.
Certain pollutants can enter the bloodstream, causing oxidative stress and inflammation in blood vessels. This increases the risk of atherosclerosis, hypertension, heart attacks, and strokes. Long-term exposure can worsen pre-existing heart conditions and elevate the risk of sudden cardiac events.
Prolonged exposure to air pollutants, especially those with carcinogenic properties like benzene and polycyclic aromatic hydrocarbons (PAHs), is strongly linked to an increased risk of lung cancer. Other cancers, such as bladder cancer, may also be associated with certain airborne toxins.
Emerging evidence suggests that air pollution can adversely affect the brain. Fine particles and toxins can cross the blood-brain barrier, leading to neuroinflammation. This exposure is linked to cognitive decline, dementia, Alzheimer's disease, and developmental delays in children.
Long-term exposure to air pollution can weaken the immune system by disrupting its ability to fend off infections. This can lead to higher susceptibility to illnesses such as pneumonia and other respiratory infections.
Pregnant women exposed to high levels of air pollution face increased risks of complications, including preterm birth, low birth weight, and developmental delays in children. Air pollution can disrupt hormonal balance and damage foetal development.
Many pollutants, especially fine particulate matter, can trigger systemic inflammation. Persistent inflammation contributes to a range of diseases, including diabetes, arthritis, and other chronic inflammatory conditions.
Pollutants such as ground-level ozone and particulates can exacerbate allergic reactions by increasing the body's sensitivity to allergens like pollen. This can lead to more severe and prolonged allergy symptoms.
Airborne pollutants, such as sulphur dioxide and particulate matter, can irritate the eyes, leading to redness, dryness, and discomfort. Long-term exposure can also damage the skin, causing premature aging, eczema, and rashes.
Chronic exposure to air pollution is associated with an overall reduction in life expectancy. The cumulative effects of respiratory, cardiovascular, and systemic diseases caused by air pollution significantly increase the risk of premature death.
By understanding these impacts, individuals can prioritise measures to reduce exposure and improve air quality, ultimately protecting public health.
Disclaimer: This content including advice provides generic information only. It is in no way a substitute for a qualified medical opinion. Always consult a specialist or your own doctor for more information. NDTV does not claim responsibility for this information.
Delhi Environment Minister Manjinder Sirsa has accused Arvind Kejriwal's AAP - in power before the BJP won the February election - of allowing more than 1.08 lakh vehicles to run on city roads despite each emitting high levels of carbon monoxide.
An integrated command and control centre has been proposed in the 2025-26 Delhi budget, presented by Chief Minister Rekha Gupta on Tuesday, for real-time monitoring of air quality, water pollution, noise levels, and waste management.
As part of broader strategy to tackle the expected winter pollution peak, the Delhi government will install six new air quality monitoring stations across the national capital over the next three months, Environment Minister said.
Delhi remained India's most polluted megacity by a wide margin during the 2024-25 winter, with an average PM2.5 concentration of 175 micrograms per cubic metre, according to an analysis released on Tuesday.
A small city on the Meghalaya-Assam border, nearly 2,000 kilometres away from Delhi, is the most polluted in the world, according to a report published by a global pollution watchdog.
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