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Written by: Hu Jiaxin
2019-12-20 23:44
Last updated: 2019-12-20 23:44The location of the CUHK Second Bridge became a conflict battlefield in the middle of last month. Police have fired more than a thousand tear gas to disperse demonstrators. The school announced the results of the third batch of campus environmental testing today. The 11 soil samples include the "shot" Xia Dingji Stadium and the No. 2 Bridge. The total cyanide content of the soil, which is commonly known as Shane, is far below the guidelines of the Environmental Protection Agency. The level of Shane is not significant, and the harm to health is negligible. In addition, the school also announced the 7 air samples and 5 tear gas residue content test results collected at the second bridge location, all of which are far below the standard.
The school stated that, because the first to third batch of test results met the safety standards, the university has started to clean up and rebuild the road surface around the loopback East Road that was originally enclosed, and it will be open for use next Monday (23th).
The school announced today the results of the third batch of campus environmental tests. In summary, the values of the detected pollutants in the above-mentioned soil, air samples and residues are insignificant to health. (Profile picture)
CUHK earlier commissioned independent accredited laboratories to take air, water and soil samples at different locations on campus at different times and send them for testing. The third batch of environmental test results were announced today.
The 11 soil samples include Xia Dingji Sports Ground, No. 2 Bridge, etc., and the average per kg of soil contains less than 1 mg of total cyanide, commonly known as Shane, which is far lower than the use of the Land Pollution Control Standards determined by the Environmental Protection Agency based on risk In the Guidelines, a reference level of 4,900 milligrams of mountain angstroms per kilometer of soil.
In addition, the testing team also collected 7 indoor and outdoor air samples at the more affected locations near the No. 2 Bridge to detect the levels of dioxins, total polychlorinated biphenyls and polycyclic aromatic hydrocarbons. The results showed that they were much lower than The reference levels of various international guidelines also fall within the range of values recorded by Hong Kong's ambient air monitoring.
As for the test results of the contents of the five types of tear gas residues, the test parameters are also far lower than the lowest value of the standard. According to the school, summing up the values of the detected pollutants in the above-mentioned soil, air samples and residues is insignificant to the health hazard.
CUHK resumes classes on January 6 next year to continue implementing access control measures. Staff and students must hold certificates.
[Tear gas bomb] Dioxin content in soil samples from the No. 2 Bridge and Xia Dingji Sports Ground did not exceed the standard
[Tear gas bomb] The first round of soil and water samples tested by CUHK has no obvious effect on health
Chinese University Dioxin Tear Gas
