Which country emits large amounts of soot and sulfur dioxide due to lack of pollution control in its factories?

China is known for its significant emissions of soot and sulfur dioxide, primarily due to the rapid industrialization it has experienced over the past few decades. The country has relied heavily on coal as a primary energy source, which contributes to high levels of particulate matter, including soot. Additionally, many factories in China historically operated with minimal pollution control measures, resulting in substantial emissions of sulfur dioxide from industrial processes, including the burning of coal and fossil fuels. This has led to severe air quality issues in several of its urban areas, making China a focal point in discussions about global air pollution and environmental health challenges.