The study found about 50 percent of the shrimp the FDA tested after the BP spill had harmful carbon levels exceeding the level of risk deemed by the group to be safe for pregnant women.

研究发现，受BP漏油事故影响且经FDA检测的虾类产品中有大约50%产品的有害碳物质含量超出了该组织视为对怀孕妇女安全构成危险的控制临界值。

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A drop in pH on the level identified in the study could have some very harmful effects.

这项研究证实，pH值水平的下降可能有一些非常有害的影响。

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To begin with, such cholesterol-rich foods as eggs and organ meats and most cheeses can directly add to the level of potentially harmful LDL.

首先，那些高胆固醇食品，如鸡蛋、器官肉类和大量的干酪会直接提高有害的LDL水平。

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To that end, investigations on the state or congressional level into the harmful economic effects of perjury would help draw attention to the matter.

WSJ: Matthew Lifflander: The Economic Truth About Lying

While the ozone layer in the upper atmosphere plays an important role in limiting harmful ultraviolet light reaching the Earth's surface, low-level ozone is a pollutant that is harmful, causing respiratory problems in animals as well as well-documented cases in humans.

BBC: Invasive plant 'increases ozone pollution'

Disaster mitigation, through early tsunami warning systems, but also by quantifying the trends of typical marine hazards, including typhoons and storm surges, sea level rise, or harmful algal blooms, are critical objectives of ocean monitoring with immediate and sustainable impacts.

UNESCO: Ocean industries and the scientific community join forces to monitor the ocean | United Nations Educational, Scientific and Cultural Organization