Transplants talk about the four seasons, the salubrious relief of the unpolluted air.

He said it had always been his dream to stand on another planet and take in great gulps of completely unpolluted air.

The island's unpolluted air makes it popular with people who have respiratory problems.

Why aren't open spaces and unpolluted air and water valuable?

Here in the unpolluted air of the deep south, the sunset lasted for two hours in summer.

The unpolluted air was so clear she could see for miles.

In unpolluted air, he said, the visibility in those areas would be more than 45 miles.

In its way, the bluntness of address was as refreshing as the unpolluted air.

The sky had been an azure dome, the air fresh and unpolluted.

Because of its unpolluted air, the island is popular for those with respiratory complaints.