It doesn't matter anymore. There are two similar nuclear fuel processing plants in China, one in Yibin, Sichuan and the other in Baotou, Inner Mongolia. Both factories are in the urban area, and they have been producing for 30 or 40 years, and have never heard of any problems.

From the point of view of radioactivity, the radioactivity of this factory can be simply ignored, because it produces low-concentration UO2 fuel (the concentration does not exceed 5%). This fuel will not produce fission before it is used in nuclear power plants, so it will not produce strong radiation such as neutrons and gamma rays. Only a small amount of alpha rays will be produced, and the penetration ability of alpha rays is extremely poor, and only one layer of paper is needed to block it. You know, UO2 fuel is sealed in a metal tube, so in the fuel assembly workshop, workers don't even need to wear masks when they go to work.

For the surrounding environment, we should pay attention to industrial wastewater and waste. Waste water and waste materials from nuclear fuel plants are recycled: first, there is expensive uranium in them, and the factory is unwilling to give it up; Second, the state also stipulates that it is not allowed to be discharged into the environment.

To sum up, there is nothing to worry about.

In addition, the questioner asked a technical question, so the answer was also from the technical aspect, not the sociological aspect.