测试结果应当不高于20微克/升。
Results should not be above 20 micrograms per liter of urine (20ug/L).
要想获得针脚上那几微克的金我们需要一个电解池。
To recover the few micrograms of gold deposited on the pins, we're going to use an electrolytic cell.
一场沙尘暴中，空气中的铝浓度会超过1400微克每立方米。
During one dust storm, airborne aluminum concentrations exceeded 1,400 micrograms per cubic meter.
一场沙尘暴中，空气中的铝浓度会超过1400微克每立方米。
During one dust storm, airborne aluminum concentrations exceeded 1, 400 micrograms per cubic meter.
准则指出，为了防止健康不良，这些水平应低于每立方米20微克。
The guidelines say that, to prevent ill health, those levels should be lower than 20 micrograms per cubic metre.
碘(海带)- 150微克。
奥地利的相应安全上限为100微克。
Austria's corresponding safe limit is set at 100 micrograms.
我建议每天90微克。
而世界卫生组织确定的“安全”水平为25微克。
The World Health Organization's determined "safe" level is 25.
世界卫生组织规定，日安全值为每立方米25微克。
The World Health Organisation considers a safe daily level to be 25 microgrammes per cubic metre.
不同的血铅水准对儿童健康的风险有别，以下数值单位为微克每升。
Health risks in children at various blood lead levels, in micrograms per liter.
全部车窗关上时，微粒含量高达每立方米2926微克。
With all the Windows up, the level skyrocketed to 2926 micrograms per cubic metre.
长期暴露在含有超过65微克每立方米的任何颗粒的空气中，都会增加健康隐患。
Chronic exposure to more than 65 micrograms per cubic meter of any type of particle in this size range may increase risk for health problems.
在一个有人正在抽烟，车窗开着的车内，微粒含量为每立方米199微克。
In a car where someone was smoking with their window down the particulate level was 199 micrograms per cubic metre.
世卫组织的指导意见是每立方米空气中的PM 2.5值不应高于10微克。
WHO o guidelines call for no more than 10 micrograms of PM 2.5 per cubic meter of air.
据世界卫生组织（WHO）称，全球城市空气污染平均水平在22微克/立方米。
Thee average air pollution level for cities around the globe is 22 micrograms per cubic metre, according to the World Health Organisation (WHO).
世界卫生组织（WHO）将PM2.5每立方米25微克的指数认定为最大安全值。
The World Health Organization (WHO) considers PM2.5 readings of 25 micrograms per cubic metre as the maximum safe level.
他们的分析表明，大气中每立方米每增加100微克的颗粒物，则降低出生时3年左右的预期寿命。
Their analysis suggests that every additional 100 micrograms of particulate matter per cubic meter in the atmosphere lowers life expectancy at birth by about three years.
在北京，过去一个月的平均空气质量指数(AQI)为每立方米195微克，最高达到470微克。
In Beijing, the average air-quality index (AQI) over the past month was 195 micrograms per cubic meter, peaking at 470.
中国要求垃圾焚烧炉所排放的二恶英每立方米不超过一毫微克，欧盟的标准则是这一标准的十分之一。
China requires that incinerators discharge no more than one nanogram of dioxin per cubic metre. The European Union sets a standard that is one-tenth of that amount.
在英国每升饮用水中三卤甲烷（THM）不允许超过 100 微克（一微克是一克的一百万之一）。
In the UK drinking water can contain no more than 100 micrograms of THM per litre. A microgram is one millionth of a gram.
在那些污染严重的城市，如德里，微粒含量平均值超过了300微克，其中大多数可能都是PM 2.5。
In heavily polluted cities such as Delhi, particle levels average over 300 micrograms and most of this is probably PM2.5s.
将可吸入颗粒物(PM 10)从每立方米70微克减少到20微克，则与空气质量有关的死亡就可减少大约15%。
By reducing particulate matter (PM10) pollution from 70 to 20 micrograms per cubic metre, we can cut air quality related deaths by around 15%.
如果大型强子对撞机LHC以7万亿电子伏全力运转，碰撞粒子的能量就相当于你吃0.00013微克糖得到的能量。
If the LHC was operating at its full 7 trillion electron volt capacity, the colliding particles' energy would equal what you'd get from eating 0.00013 micrograms of a candy bar.
她说，其他研究已经表明，美国育龄妇女平均每日叶酸摄入量约为130微克，远低于推荐的400微克。
She said other research has shown that U. S. women of childbearing age average about 130 micrograms of folic acid daily, far below the recommended level.
关于这种情况能否导致少量成分（通常在微克/公斤范围内）进入食物，继而对人类健康产生影响可能还需要进一步的评估。
Whether this has a potential for carry over into food at low concentrations (usually in the range of microgram per kilogram) and could further impact human health may need further evaluation.
该准则指明，将颗粒物(PM 10)从每立方米70微克减少到20微克，则与空气质量有关的死亡就可减少大约15%。
The Guidelines indicate that by reducing particulate matter (PM10) pollution from 70 to 20 micrograms per cubic metre, we can cut air quality related deaths by around 15%.
该准则指明，将颗粒物(PM 10)从每立方米70微克减少到20微克，则与空气质量有关的死亡就可减少大约15%。
The Guidelines indicate that by reducing particulate matter (PM10) pollution from 70 to 20 micrograms per cubic metre, we can cut air quality related deaths by around 15%.
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