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Originally Posted by rmay635703
If you don't like nitric which turns into fertalizer when it hits soil, you could have a driveway saltwater mist into the exhaust post cat, then you end up with again more fertalizer.
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Our farmers have to cut down on fertilizers to reduce NO2 and NO3 in the soil - which then end up in the surface waters.
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For example my folks dumped acid on their garden for years and had some nice blueberries and rhubarb.
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That's not to say they were really healthy.
You can't judge the poisons in fruits or vegetables by looking at their external appearance.
Some pretty bad stuff can accumulate in plants without readily apparent ill consequences for the plant, but with severe long term consequences for those eating them.
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To really reduce NOx we really need to reduce the number of gas guzzlers, since all cars make NOx regardless of lean or not.
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That would surely help - with high fuel consumption comes high air intake and more NOx .