Clay total selenium tests to detect heavy metals

 Clay total selenium tests to detect heavy metals, clay, brick red soil: Hainan Island, Leizhou Peninsula, Xishuangbanna and southern Taiwan Island, located approximately 22 ° south latitude regions. Tropical monsoon climate. The annual average temperature is 23 ~ 26 ℃, the average annual precipitation is 1600 to 2000 mm. Vegetation is tropical monsoon forest. Intense weathering leaching, a huge loss of soluble inorganic nutrients, iron, aluminum residues in the soil, the color red. Deep soil, sticky texture, fertility is poor, acidic Xeon acidic. When too many harmful substances in soil containing more than self-purification capacity of soil, can cause soil composition, structure and function changes, microbial activity is inhibited, harmful substances or decomposition products gradually accumulate in the soil, through the "soil → Plants → body, "or by" soil → water → body "indirect absorbed by the body, to the extent of harm to human health, the soil is contaminated. Universal set Contact: Young workers -18,028,719,370, online QQ: 1448179206. Customers are welcome to inquire to know, we have a professional attitude to provide you with the best quality service!