求翻译：化肥和农药过多使用，与空气污染有关的有毒尘埃降落，泥浆到处喷洒，危险废 料到处抛弃，所有这些都在对土地构成一般来说是不可逆转的污染是什么意思？

Excessive use of fertilizers and pesticides, and toxic dust associated with air pollution landed, slurry spraying everywhere, everywhere abandoned hazardous wastes, all of which are in the land is generally irreversible pollution