Hello, did the atomic bomb exploded in Hiroshima and Nagasaki at the end of World War II affect China? How was it handled at that time?

There is no environmental impact, because the distance between China and Japan is too far, radioactive nuclear materials can't float so far, and electromagnetic pulse waves won't affect it so far.

Even a few more explosions will not affect our country.

After World War II, the United States also conducted many nuclear weapons tests in the Pacific region. Nuclear pollution is not as serious as imagined, and it has not damaged the Pacific Ocean. Of course, if all nuclear weapons in the United States release energy, the earth will be gone.