Water pollution does not remain confined to rivers or lakes. Its impact spreads to human health, ecosystems, food chains, and ultimately the economy and society.Let’s break down each effect. Effects on Human Health Water polluted with sewage, chemicals, and heavy metals becomes a source of major diseases. A. Diseases from Sewage Pollution Sewage contains harmful…
Water pollution occurs not only because pollutants exist but because human activities add them at a scale that natural systems cannot handle. Let us analyse the major causes one by one. 1. Industrial Wastes Industries are one of the largest contributors to water pollution. Think of them as “point sources” continuously releasing wastewater loaded with…
What is Water Pollution? Water pollution simply means:Any undesirable substance enters water → water quality deteriorates → water becomes unfit for use. These undesirable substances are called POLLUTANTS, and they may be: Even nature contributes to pollution. For example: So, pollution is not always man-made, but human activities greatly magnify its scale and impact. Types…
When we talk about protecting the ozone layer, two names always come up:Vienna Convention and Montreal Protocol.Think of them as the Constitution and law of global ozone protection. Vienna Convention (1985) Imagine the world realizing in the 1980s that the ozone layer—our natural sunscreen 😊—was thinning.But countries did not yet know exactly what actions to…
Control of Industrial Pollution — The First Line of Defence Industrial units are major contributors to particulate and gaseous pollution. To control this effectively, the strategy has three pillars: A. Cleaner fuels Replaces dirty fuels (coal, furnace oil) with cleaner alternatives like:➡️Liquefied Natural Gas (LNG)➡️Low-sulphur fuels➡️Cleaner industrial processes Cleaner fuels = lower emissions of SO₂,…
Think of air pollution as a series of insults to the atmosphere — some immediate and visible (smog, haze), some chemical and silent (acid rain, ozone chemistry) — but all of them connected by the same thread: human activity altering atmospheric chemistry and physics, and ecosystems paying the price. 1. Smog — Smoke + Fog…
Introduction To understand air pollutants, think of them as “unwanted guests” in the atmosphere.They may differ in origin, behaviour, or chemical nature. Based on this, we classify them into primary, secondary, quantitative, and qualitative pollutants. 1. Primary Pollutants These pollutants remain in the same form in which they were released.They are persistent, meaning they continue…
Introduction To understand air pollution, imagine the atmosphere as a delicate mixture of gases that sustains life. When any unwanted solid, liquid or gaseous substance enters this mixture in harmful concentrations, it disrupts natural processes. This disruption—whether it affects humans, animals, plants, property, or natural cycles—is what we call air pollution. Why Is Air Pollution…
Environmental Degradation Imagine the environment as a life-support system that functions smoothly when all its components—air, water, soil, forests, oceans, and living beings—are in balance. Environmental degradation occurs when this balance gets disturbed to such an extent that the environment becomes less suitable or even unfit for sustaining various life forms. Now, why is this…
Conservation of Elephants When we study elephant conservation, we must understand one thing clearly: unlike tigers, elephants are not vanishing suddenly; they are thinning slowly.This is why experts say elephants face attrition, not extinction. Their numbers do not crash suddenly—but their habitats shrink, fragment, and get disturbed, which gradually weakens the population. Status of Elephants…
