Improve the grammaticality of this sentence: The opposition came about as the citizens are fearful that the environmental effects of radioactive compounds may lead to health problems when contamination or leakage was to occur.
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The government is concerned about the possible health effects of the radioactive waste produced by the nuclear plant.
The government is concerned that the radioactive waste produced by the nuclear plant is to be released into the environment.
The government is concerned about the potential health effects of the radioactive waste produced by the nuclear plant.
The government is concerned about the potential health effects of the radioactive waste produced by the nuclear plant.
The government is concerned about the potential health effects of the radioactive waste produced by the nuclear plant