空气中稀土水平的测定

Determination on rare earth level in air

目的 了解空气中的稀土浓度。方法 采集稀土矿区和非矿区村民空气粉尘 ,用电感耦合等离子质谱仪测定稀土的浓度。结果 矿区村民室内、室外空气总悬浮颗粒中的稀土含量分别为 80 0 0和 3 59 1ng/m3 ,非矿区村民的室内、室外分别为 67 9和 86 6ng/m3 。矿区村民室内、室外可吸入颗粒中的稀土含量分别为 90 5 1和612 5ng/m3 ;非矿区村民的室内、室外分别为 2 76 7和 3 2 8 1ng/m3 。结论 矿区空气中的稀土浓度较高 。

ObjectiveTo study the effect of rare earth concentration on living environmental air by rare earth mining.Air concentration of rare eart h was measured.MethodsTo collect air dust in rare earth mining area and nonmine vallades and use ICP-MS to measure rare earth concentration.ResultsThe rare earth concentration in total suspended p articulates(TSP) indoor and outdoor were 800.0 and 359.1?ng/m 3 respectively i n rare earth mining area;67.9 and 86.6?ng/m 3 respectively in non-rare earch m ining area;the rare earth concentration in inhalable particles(IP) indoor and ou tdoor were 905.1 and 612 5?ng/m 3 respectively in rare earth mining area,276. 7 and 328.1?ng/m 3respectively in non-rare earth mining area.ConclusionConcentration of air rare earth in rare earth mining was much higher than that of in non-rare earth mining area,the examinatio n of air rare earth concentration was one of important contents for researching effect on health.