Posted by Mark S on October 21, 2019, 4:07 pm, in reply to "rain report acidic"
According to the EPA, "normal, clean rain has a PH value of between 5.0 and 5.5" and "typical acid rain has a PH value of 4.0". Your range of "4,5 or 6" doesn't seem to support your conclusion that we received "acid rain" down here recently.