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Pollutants and Their Effects 2025: Know the Sources and Impacts on Human Health & Environment

By Siksakul

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Pollutants and Their Effects: In today’s rapidly changing world, pollutants and their effects have become a growing concern for both human health and the environment. From air pollution and health risks to the harmful effects of water and soil pollution, understanding the sources of pollutants is crucial in developing effective solutions. This blog explores the types of pollutants, their sources, and how they cause pollution-related diseases and ecosystem damage.

We’ll delve into the impact of pollution on health, examine how noise pollution and chemical pollutants in air and water affect our well-being, and uncover the long-term effects of pollutants on biodiversity. Topics such as industrial pollution sources, pollution and global warming, and pollution awareness and solutions will also be discussed to shed light on how pollutants affect air quality, the environment, and human health alike.

Whether you’re a student, educator, or concerned citizen, this comprehensive guide will help you understand the causes of environmental pollution and inspire action toward a cleaner, healthier planet.

Pollution has become one of the most pressing global concerns in 2025, contributing significantly to climate change, ecosystem damage, and serious human health issues. Whether it’s air, water, or soil pollution—various pollutants are constantly released into the environment from industries, vehicles, or chemical reactions. In this blog, we will break down the major environmental pollutants, their origins, and their adverse effects on the human body and environment.

This list is especially helpful for competitive exams, general knowledge preparation, and awareness about environmental science.

Pollutants and Their Effects: Know the Sources and Impacts on Human Health & Environment

Pollutants, Origins & Effects

Sr. No.PollutantOriginEffect
1Arsenic (As)Coal, oil furnaces, glass factoriesLung and skin cancer
2Benzene (CH)Refineries, motor vehiclesLeukemia
3Cadmium (Cd)Smelters, coal, oil furnacesDamage to lungs, kidneys, and bones
4Chlorine (Cl)Chemical industries, volcanic activitiesIrritates eyes and lungs
5Carbon monoxide (CO)Motor vehicles, smelters, coal and steel plantsStarves body of oxygen, damages heart
6Fluoride (F)Natural deposits, industrial wasteMottles teeth in children
7HydrocarbonsUnburnt gasoline fumes, motor vehiclesForms smog with NOₓ, causes eye and nose irritation
8Formaldehyde (HCHO)Chemical plantsAllergenic, carcinogenic, worsens asthma
9Hydrogen chloride (HCl)IncineratorsIrritates eyes, mucous membranes
10Hydrogen fluoride (HF)Fertilizer plants, smeltersIrritates skin and lungs
11Mercury (Hg)Coal, smelters, oil furnacesTremors, nerve problems
12Nitric acid (HNO₃)Formed from NOCauses acid rain, respiratory diseases
13Nitrous acid (HNO₂)Formed from NO and water vaporRespiratory diseases
14Hydrogen sulfide (H₂S)Refineries, pulp millsNausea, eye irritation
15Sulfuric acid (H₂SO₄)Formed from SO₂ in sunlight with hydroxyl ionsRespiratory diseases
16Manganese (Mn)Steel and SO₂ power plantsParkinson’s disease
17Nickel (Ni)Smelters, steel plantsLung cancer
18Nitric oxide (NO)Motor vehicles, coal, oil furnacesOxidizes to NO₂
19Nitrogen dioxide (NO₂)Formed from NO in sunlightBronchitis, forms ozone, weakens immunity
20Ozone (O₃) (ground-level)Formed from NOₓ and VOCs in sunlightAsthma, eye irritation
21Lead (Pb)Motor vehicles, smeltersBrain damage
22Silicon tetrafluoride (SiF₄)Chemical plantsLung diseases
23Sulfur dioxide (SO₂)Smelters, coal, oil furnacesEye irritation, breathing problems

🧠 Why This Matters for Competitive Exams

For students preparing for UPSC, SSC, Railways, State PCS, or environmental science quizzes, knowing pollutants, their origins, and impacts is crucial. It falls under Static GK, Environmental Studies, and even Current Affairs due to climate-related discussions.


📘 Use This Table As:

  • 🔹 Environmental Science Notes for Class 10-12
  • 🔹 General Science MCQ Practice Base
  • 🔹 UPSC/PCS Static GK Revision
  • 🔹 Air Pollution Awareness Content
  • 🔹 Infographics & PDF Download Material for Exams

🌍 Final Thoughts

Pollution affects not only health but also climate, biodiversity, and economic productivity. Understanding the pollutants and reducing their emissions through cleaner alternatives is the need of the hour. Stay informed. Stay aware.


আপনি কি বাংলা উক্তি, কবিতা ও গল্প পড়তে ভালোবাসেন তাহলে এখনি ক্লিক করুন আমাদের ওয়েবসাইটে www.raateralo.com

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