Sulfur dioxide is a major air pollutant that contributes to the formation of acid rain. When sulfur dioxide reacts with water in the atmosphere, it forms sulfuric acid, which can then fall to the ground as acid rain.

Ozone is a common air pollutant that can cause respiratory problems in plants. Ozone can damage plant leaves, reducing their ability to photosynthesize and produce food.

Phytoremediation is the process by which plants remove pollutants from the environment. Plants can absorb pollutants through their roots, leaves, and stems, and then break them down into harmless substances.

Willow trees are commonly used in phytoremediation to remove heavy metals from soil. Willows have a high tolerance for heavy metals and can absorb and accumulate them in their roots and stems.

Fertilizers are the primary pollutant responsible for water pollution in agricultural areas. Fertilizers contain high levels of nitrogen and phosphorus, which can run off into waterways and cause algal blooms and eutrophication.

Mercury is a common water pollutant that can cause health problems in humans and wildlife. Mercury can accumulate in fish and other aquatic organisms, and when humans consume these organisms, they can be exposed to high levels of mercury.

Rhizoremediation is the process by which plants absorb and accumulate pollutants from the soil. Plants release exudates from their roots that can help to break down pollutants and make them more available for uptake by the plant.

Mustard plants are commonly used in rhizoremediation to remove organic pollutants from soil. Mustard plants have a high tolerance for organic pollutants and can absorb and accumulate them in their roots.

Heavy metals are the primary pollutant responsible for soil pollution in urban areas. Heavy metals can come from a variety of sources, including industrial activities, vehicle emissions, and the use of lead-based paint.

Lead is a common soil pollutant that can cause health problems in humans and wildlife. Lead can accumulate in the body and can cause a variety of health problems, including brain damage, kidney damage, and reproductive problems.

Phytodegradation is the process by which plants break down and detoxify pollutants. Plants can use a variety of enzymes to break down pollutants into harmless substances.

Sunflowers are commonly used in phytodegradation to remove organic pollutants from soil. Sunflowers have a high tolerance for organic pollutants and can break them down into harmless substances.

Rhizoremediation is the process by which plants release exudates from their roots that can help to break down pollutants in the soil. These exudates can help to increase the solubility of pollutants and make them more available for uptake by the plant.

Willows are commonly used in rhizoremediation to remove heavy metals from soil. Willows have a high tolerance for heavy metals and can release exudates from their roots that can help to break down and immobilize these metals.

Phytoremediation is the process by which plants can help to reduce air pollution. Plants can absorb air pollutants through their leaves and stems, and then break them down into harmless substances.