Reflection on Harmful Concentration of SO2 in Air

A concentration of 0.5 ppm by volume of SO2 in the air is harmful to plant life. This means that even a small amount of sulfur dioxide present in the air can negatively impact the health and growth of plants.

Sulfur dioxide (SO2) is a harmful gas emitted into the atmosphere primarily from burning fossil fuels like coal and oil. When this gas reaches a concentration of 0.5 parts per million (ppm) by volume in the air, it can have detrimental effects on plant life.

Plants are sensitive to air pollution, especially gases like sulfur dioxide. High levels of SO2 can damage the leaves of plants, inhibit photosynthesis, and reduce the plant's ability to uptake nutrients and water from the soil. This can lead to stunted growth, decreased crop yields, and even plant death in severe cases.

Therefore, it is crucial to monitor and control the levels of sulfur dioxide in the air to protect plant health and overall ecosystem balance. Efforts to reduce emissions and improve air quality are essential in safeguarding the well-being of plant life and the environment as a whole.