jiǎncè / rényuán / fāxiàn / tǔrǎng / zhōng / de / wūrǎnwù / yǐ / kuòsàn / dào / zhěnggè / wūrǎnqū检测人员发现土壤中的污染物已扩散到整个污染区。Inspectors found that contaminants in the soil have spread to the entire contaminated area.