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Today when the early sun had risen I'd gone for a walk and noticed something I've never seen before. In every empty parking spot every oil stain that was left behind by a previously parked car had turned green like pea soup. Looks like plankton on a seaboard. That got me to worrying about atmospheric conditions then decided to not trouble myself with what I could not answer. As I walked I could see that this green effect was true for every oil stain there was in all the parking lots. So I decided to go ask a professional. At the automotive shop the mechanic could barely speak English but he told me with difficulty that it was caused by pollen and not to worry because he sees this happen every year. I later researched this on Google but couldn't find anything at all about oil spots that turn green. Was the mechanic right?
reply to post by LightningStrikesHere
Actually, I took several pics out in the daylight sun & the camera just wouldn't pick up the green color, even with the brightest greens. In some places there's now a small percentage of yellow, like the color of pancrea.