Each morning, we step out of our homes, energized and determined to tackle the day ahead. Yet, that optimism can quickly fade when we are confronted by an unsettling sight: a hazy, smoky skyline. At first glance, it may resemble a serene path to heaven—but as our bodies respond with coughing, sneezing, tearing eyes, and shortness of breath, reality sets in. What lies before us is not serenity, but an unavoidable public health hazard: PM2.5 air pollution.
