含量 (hán liàng): content

The heavy metal content in the wastewater discharged by this factory severely exceeds the standard, and the environmental protection department has ordered it to suspend production for rectification.

After testing, the geological team found that although the gold content in this land is not high, it is distributed very evenly and is suitable for large-scale mining.

The nutritionist advised me to eat more dark green vegetables because their folic acid content is much higher than that of light-colored vegetables, which is especially important for pregnant women.