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一、空气、土壤、水和其他介质中的水平 (一)空气。都市空气中的钛大多低于0.1μg/M~3,而农村空气中钛浓度则更低,间或有报告:城市空气中浓度超过1.0μg/M~3,特别是工业化地区。 Tabor等使用一种半定量分光摄象仪方法,研究几个美洲城市大气中若干金属的分布,钛的可检出量为0.01μg/M~3,在检查的754份样品中,未检出的为22.3％,中等浓度
First, air, soil, water and other media levels (a) of the air. Urban air is mostly below 0.1μg / M ~ 3 Ti, while in rural areas, the concentration of titanium in the air is lower, with or without airborne concentrations exceeding 1.0μg / M ~ 3 in urban air, especially in industrialized areas. Tabor et al. Used a semi-quantitative spectrophotometric method to study the distribution of several metals in the atmosphere of several American cities. The detectable amount of titanium was 0.01 μg / M ~ 3. Of the 754 samples examined, no detectable For 22.3%, medium concentration