It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
This image was acquired from
Keywords from Image Description:
alley smog haze mist hazy fog outdoor architecture buildings power lines powerlines geometric industry environment environmental science environmentalscience air quality airquality public domain publicdomain road Public Domain Dedication CC Source Public Domain Dedication CC Source
Page 2017 Free-images.com. All images are Public Domain