The PM2.5 exposure levels in Japan are projected to increase gradually from 14.09 micrograms per cubic meter in 2024 to 14.37 in 2028. Compared to the baseline level in 2023, this indicates a steady upwards trend in air pollution, with each year seeing a marginal increase of approximately 0.5% year-on-year. This consistent rise suggests a compounded annual growth rate (CAGR) for the forecasted period. The notable increase in PM2.5 levels reflects ongoing challenges in air quality management despite technological advancements and policy measures.
Future trends to watch for include the impact of stricter environmental regulations and the adoption of cleaner technologies, which could potentially curb the projected rise in air pollution. Additionally, increased public awareness and shifts in industrial practices may also influence future air quality standards and trends.