{"id":20946,"date":"2025-09-03T16:42:35","date_gmt":"2025-09-03T11:12:35","guid":{"rendered":"https:\/\/www.aqi.in\/blog\/?p=20946"},"modified":"2025-09-03T16:42:38","modified_gmt":"2025-09-03T11:12:38","slug":"india-floods-2025","status":"publish","type":"post","link":"https:\/\/www.aqi.in\/blog\/india-floods-2025\/","title":{"rendered":"India Floods 2025: How Waterlogging Is Creating a Hidden Air Pollution Crisis?"},"content":{"rendered":"\n<p>This year\u2019s monsoon has brought India to its knees. From <strong>Delhi\u2013NCR to Punjab, Haryana, Uttar Pradesh, and Odisha<\/strong>, more than <strong>15 major cities and towns are underwater<\/strong>. Streets look like rivers, homes are submerged, and daily life has come to a standstill. But the real danger is not just what we see in the floodwaters; it\u2019s what we <strong>breathe after the India floods 2025<\/strong>.<\/p>\n\n\n\n<p>When water stays for days, it doesn\u2019t just damage roads and crops. It turns into a <strong>breeding ground for fungus, bacteria, and other invisible microorganisms<\/strong>. As the water recedes, these germs rise into the air as <strong>bioaerosols<\/strong>. These are the tiny airborne particles carrying <strong>mold spores, pathogens, and toxic debris<\/strong>. This means that every flood-hit city is not only fighting water but also facing a <strong>second battle in the air<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1068\" src=\"https:\/\/www.aqi.in\/blog\/wp-content\/uploads\/2025\/09\/delhi-road-with-bikes-and-vehices-on-a-heavy-rainy-day.webp\" alt=\"Road of Delhi on heavy rain day with bikes and other vehicles\" class=\"wp-image-20958\"\/><\/figure>\n\n\n\n<p>Why does this matter? Because bioaerosols are <strong>not like regular pollution<\/strong>. Breathing them can trigger <strong>asthma, pneumonia, and severe lung infections<\/strong>. Long-term exposure has been linked to <strong>chronic illnesses, allergies, and even higher cancer risks<\/strong>. For children, the elderly, and those already struggling with poor air quality in India, the danger is even greater.<\/p>\n\n\n\n<p>Right now, <strong>Delhi is under red alert<\/strong>, the <strong>Yamuna has crossed danger levels<\/strong>, and <strong>Gurugram logged over 100 mm of rain in hours<\/strong>. With stagnant water pooling across cities, the risk is clear: <strong>after the floods, our air could become as deadly as the water itself<\/strong>.<\/p>\n\n\n\n<p>In this post, we\u2019ll break down:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>What\u2019s happening across India\u2019s flood 2025?<\/strong><\/li>\n\n\n\n<li><strong>How waterlogging is directly linked to air pollution?<\/strong><\/li>\n\n\n\n<li><strong>The science of bioaerosols and why they\u2019re worse than normal smog<\/strong><\/li>\n\n\n\n<li><strong>Steps you can take to protect yourself and your family<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><a href=\"https:\/\/www.pranaair.com\/blog\/role-of-bioaerosols-in-air-quality\/\" target=\"_blank\" rel=\"noopener\">What Are Bioaerosols<\/a>?<\/strong><\/h3>\n\n\n\n<p><strong>Bioaerosols<\/strong> are airborne particles that contain or originate from living organisms \u2014 including <strong>bacteria, viruses, fungi, spores, and fragments of organic matter<\/strong>. During floods and prolonged waterlogging:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Contaminated water mixes with <strong>sewage, animal waste, and industrial effluents<\/strong>.<\/li>\n\n\n\n<li>Surfaces like <strong>soil, debris, and stagnant puddles<\/strong> become breeding grounds for <strong>pathogens<\/strong>.<\/li>\n\n\n\n<li>As waters recede or evaporate, microorganisms and organic debris get <strong>aerosolised<\/strong> and suspended in the air.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>India Floods 2025: What\u2019s Happening Across the Country?<\/strong><\/h2>\n\n\n\n<p>At least 10+<strong> Indian states\/UTs<\/strong> as including <strong>Punjab, Haryana, Delhi\u2013NCR, Uttar Pradesh, Odisha, Jammu &amp; Kashmir, Himachal Pradesh, Uttarakhand, and Rajasthan<\/strong>. These areas are facing widespread floods and severe waterlogging. The scale is massive:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1898\" height=\"1266\" src=\"https:\/\/www.aqi.in\/blog\/wp-content\/uploads\/2025\/09\/status-and-conditions-of-flood-across-india.webp\" alt=\"Status of India flood 2025 havoc across northern and eastern India\" class=\"wp-image-20969\"\/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>23 districts in Punjab<\/strong> declared disaster-hit, with <strong>1,200+ villages submerged<\/strong> and <strong>3.5 lakh people affected<\/strong>.<\/li>\n\n\n\n<li><strong>Haryana<\/strong> reports <strong>many villages underwater<\/strong>, with Gurugram and other areas struggling with deep waterlogging.<\/li>\n\n\n\n<li><strong>Delhi<\/strong>\u2019s Yamuna has crossed danger levels, forcing evacuations in Najafgarh Basin and other low-lying colonies.<\/li>\n\n\n\n<li><strong>Mathura (U.P.)<\/strong> has moved <strong>1,000+ residents<\/strong> to relief camps.<\/li>\n\n\n\n<li><strong>Odisha<\/strong> cities like <strong>Bhubaneswar and Balasore<\/strong> are battling knee-deep water in residential neighbourhoods.<\/li>\n\n\n\n<li>In the Himalayan states, <strong>flash floods in Uttarkashi<\/strong> and <strong>cloudburst-triggered floods in Kishtwar (J&amp;K)<\/strong> have left <strong>67+ dead, 300 injured, and 200 missing<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p><strong>Why the spread looks \u201ceverywhere\u201d:<\/strong> These events have connections by synoptic systems feeding moisture from the Arabian Sea\/Bay of Bengal, plus local urban heat island effects, paved surfaces, and clogged drainage. The result is high runoff, short\u2011duration deluges, and prolonged street flooding.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>How the India Floods 2025 Air Pollution Crisis Is Triggered by Bioaerosols?<\/strong><\/h3>\n\n\n\n<p>Ever noticed how water left in a bucket turns green, or damp walls grow mould? That same process happens on a massive scale during floods. But instead of just algae or mould, floodwater mixes with <strong>sewage, garbage, animal waste, and rotting crops<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1066\" src=\"https:\/\/www.aqi.in\/blog\/wp-content\/uploads\/2025\/09\/two-bikes-on-water-filled-road-due-to-heavy-rain.webp\" alt=\"Two bikes and other vehicles on a water filled road on a heavy rain day\" class=\"wp-image-20947\"\/><\/figure>\n\n\n\n<p>When this contaminated water stagnates and then dries, it releases <strong>bioaerosols<\/strong>, tiny airborne particles packed with <strong>bacteria, viruses, fungi, and toxins<\/strong>. Breathing them in can cause <strong>asthma, infections, allergies, and even serious long-term illness<\/strong>.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Stagnant Contaminated Water<\/strong>\n<ul class=\"wp-block-list\">\n<li>A study from the <em>National Centre for Biotechnology Information (NCBI, 2020)<\/em> showed that floodwater contains <strong>10\u2013100x higher microbial load<\/strong> than non-flooded water sources.<\/li>\n\n\n\n<li>Pathogens like <strong>E. coli, Salmonella, and Vibrio cholerae<\/strong> thrive and can be released as <strong>respirable particles<\/strong>.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Soil Disturbance<\/strong>\n<ul class=\"wp-block-list\">\n<li>Floodwaters loosen <strong>soil particles rich in fungi and spores<\/strong> (e.g., <em>Aspergillus<\/em>, <em>Cladosporium<\/em>).<\/li>\n\n\n\n<li>When water recedes, <strong>wind and human activity<\/strong> resuspend these particles.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Waste &amp; Organic Decay<\/strong>\n<ul class=\"wp-block-list\">\n<li>In Punjab alone, <strong>1,200+ villages<\/strong> submerged means massive <strong>crop rot and livestock waste<\/strong>.<\/li>\n\n\n\n<li>Decomposing organic matter releases <strong>endotoxins<\/strong> and <strong>mycotoxins<\/strong>, harmful even in low concentrations.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Indoor Contamination<\/strong>\n<ul class=\"wp-block-list\">\n<li>Flooded homes (Delhi, Gurugram, Mathura) develop <strong>mould infestations<\/strong> within <strong>48\u201372 hours<\/strong>.<\/li>\n\n\n\n<li>Mould spores (like <em>Stachybotrys chartarum<\/em>) are potent allergens and can trigger <strong>severe respiratory illness<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>India Floods 2025 Air Pollution: How Bioaerosols Make the Air Dangerous?<\/strong><\/h3>\n\n\n\n<p>When streets and villages stay underwater for days, the danger doesn\u2019t stop at the ground. Floods and waterlogging release <strong>invisible germs and particles into the air<\/strong> \u2014 what scientists call <em>bioaerosols<\/em>. These come from dirty water, rotting waste, and damp houses, and they can make people sick even if they never touch the floodwater.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"1800\" src=\"https:\/\/www.aqi.in\/blog\/wp-content\/uploads\/2025\/09\/how-indias-flood-air-pollution-affecting-health.webp\" alt=\"How India's flood 2025 can affect the health of residents suffering\" class=\"wp-image-20991\"\/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Breathing Problems<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Damp walls and furniture quickly grow <strong>mould<\/strong>. Breathing in these spores can trigger <strong>asthma, constant coughing, and chest tightness<\/strong>.<\/li>\n\n\n\n<li>After Hurricane Katrina in the U.S., nearly <strong>1 in 2 people in relief camps<\/strong> reported new breathing issues because of mouldy, damp air.<\/li>\n\n\n\n<li>In India, people with asthma or weak lungs (like the elderly and children) are the most at risk when mould spores mix with already polluted city air.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Stomach &amp; Fever Illnesses<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Floodwater is often mixed with <strong>sewage<\/strong>. As it dries, germs like <strong>E. coli and cholera bacteria<\/strong> become airborne.<\/li>\n\n\n\n<li>People can get sick by <strong>inhaling these particles<\/strong> or when food and drinking water are contaminated.<\/li>\n\n\n\n<li>After the <strong>2018 Kerala floods<\/strong>, health surveys found a <strong>40% jump in stomach infections and fever cases<\/strong>, many in relief camps where air and water were both contaminated.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Skin, Eye &amp; General Health<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Germs and fungal particles in the air can irritate <strong>skin and eyes<\/strong>, causing rashes, itching, and redness.<\/li>\n\n\n\n<li>Some toxins from moulds are strong enough to cause <strong>headaches, tiredness, or dizziness<\/strong> after long exposure.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Who Suffers the Most?<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Children<\/strong> breathe faster than adults, so they inhale more germs per breath. Their weaker immunity makes them quick targets.<\/li>\n\n\n\n<li><strong>Older adults and people with diabetes or heart disease<\/strong> often end up in hospitals after exposure.<\/li>\n\n\n\n<li><strong>Families in relief camps<\/strong> face the highest risks, since many people are packed together in damp, poorly ventilated spaces.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How to Stay Safe from Flood-Linked Air Pollution<\/strong><\/h2>\n\n\n\n<p>Floods don\u2019t just bring water because they release <strong>bioaerosols<\/strong> (germs, mould, toxins) into the air. Here\u2019s what you can do:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Wear protection:<\/strong> Use an <strong>N95\/N99 mask<\/strong> in damp or flooded areas.<\/li>\n\n\n\n<li><strong>Keep air clean:<\/strong> Ventilate when possible, dry damp walls, and clean mould with a bleach solution.<\/li>\n\n\n\n<li><strong>Stay safe indoors:<\/strong> Drink boiled\/filtered water and throw away food exposed to dampness.<\/li>\n\n\n\n<li><strong>Protect the vulnerable:<\/strong> Keep children, the elderly, and asthma patients away from damp rooms.<\/li>\n\n\n\n<li><strong>Track your air:<\/strong> Use <strong><a href=\"https:\/\/www.aqi.in\/\">AQI.IN<\/a><\/strong> to monitor real-time air quality and bioaerosol risk in your city.<\/li>\n<\/ul>\n\n\n\n<p>Floods may pass, but the <strong>air danger lingers<\/strong>. Staying alert and informed is your best defence.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>FAQ on India Floods 2025 Air Pollution<\/strong><\/h2>\n\n\n\n<p><strong>Q1. Can floods increase air pollution in India?<\/strong><strong><br><\/strong>Yes. Floods release <strong>bioaerosols<\/strong> \u2014 airborne mould, bacteria, and toxins \u2014 that worsen air quality and harm health.<\/p>\n\n\n\n<p><strong>Q2. What are bioaerosols in floods?<\/strong><strong><br><\/strong>They are <strong>tiny airborne particles<\/strong> from sewage, mold, and decaying matter that spread through the air during floods.<\/p>\n\n\n\n<p><strong>Q3. How do floods affect health beyond waterborne diseases?<\/strong><strong><br><\/strong>They trigger <strong>asthma, pneumonia, skin rashes, eye irritation, and fatigue<\/strong>, lasting long after the waters recede.<\/p>\n\n\n\n<p><strong>Q4. How can I protect myself from the India floods 2025 air pollution?<\/strong><strong><br><\/strong>Wear <strong>N95\/N99 masks<\/strong>, ventilate homes, clean mold, drink safe water, and track AQI on <strong>AQI.in<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This year\u2019s monsoon has brought India to its knees. From Delhi\u2013NCR to Punjab, Haryana, Uttar Pradesh, and Odisha, more than&hellip;<\/p>\n","protected":false},"author":29,"featured_media":20980,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[4862,4859,4861,4860],"class_list":["post-20946","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-air-pollution","tag-flood-affecting-air-quality","tag-flood-in-india","tag-flood-in-india-2025","tag-india-flood-2025"],"_links":{"self":[{"href":"https:\/\/www.aqi.in\/blog\/wp-json\/wp\/v2\/posts\/20946","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.aqi.in\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.aqi.in\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.aqi.in\/blog\/wp-json\/wp\/v2\/users\/29"}],"replies":[{"embeddable":true,"href":"https:\/\/www.aqi.in\/blog\/wp-json\/wp\/v2\/comments?post=20946"}],"version-history":[{"count":3,"href":"https:\/\/www.aqi.in\/blog\/wp-json\/wp\/v2\/posts\/20946\/revisions"}],"predecessor-version":[{"id":21004,"href":"https:\/\/www.aqi.in\/blog\/wp-json\/wp\/v2\/posts\/20946\/revisions\/21004"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.aqi.in\/blog\/wp-json\/wp\/v2\/media\/20980"}],"wp:attachment":[{"href":"https:\/\/www.aqi.in\/blog\/wp-json\/wp\/v2\/media?parent=20946"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.aqi.in\/blog\/wp-json\/wp\/v2\/categories?post=20946"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.aqi.in\/blog\/wp-json\/wp\/v2\/tags?post=20946"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}