👉 Delta fumes refer to the gradual and often subtle changes or effects that accumulate over time, typically from exposure to pollutants or harmful substances. These changes can manifest in various ways, such as long-term health issues like respiratory problems, cardiovascular diseases, or neurological disorders, as well as environmental degradation. Unlike immediate, acute fumes, delta fumes develop slowly, making them harder to detect and mitigate, but their cumulative impact can be significant and far-reaching.