They have a NOx problem because of all the diesels they use. The only problem modern gasoline engines cause is CO2, which is completely non-toxic to humans.
Diesels are starting to gain popularity here though. Especially with the new low-sulfur diesels, many companies are planning diesel models for the US. Petrol burning cars emit SOME nitrous oxides too. Especially older ones. As long as its not much more expensive than normal concrete... this should be used everywhere.
"gasoline engines cause is CO2, which is completely non-toxic to humans."
I believe you're thinking of CO (but it's still toxic). Hemoglobin will uptake CO more readily than O2, and will kill you quite rapidly. Although C02 is definitely a byproduct, the CO will kill you before you experience CO2 poisoning.
CO2 is most definitely toxic. Why do you think our bodies expirate it? OSHA considers anything above 6% concentration in the local beathable environment deadly (because it lowers the O2 concentration below 19.5%).
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They have a NOx problem because of all the diesels they use. The only problem modern gasoline engines cause is CO2, which is completely non-toxic to humans.
Diesels are starting to gain popularity here though. Especially with the new low-sulfur diesels, many companies are planning diesel models for the US. Petrol burning cars emit SOME nitrous oxides too. Especially older ones. As long as its not much more expensive than normal concrete... this should be used everywhere.
"gasoline engines cause is CO2, which is completely non-toxic to humans."
I believe you're thinking of CO (but it's still toxic). Hemoglobin will uptake CO more readily than O2, and will kill you quite rapidly. Although C02 is definitely a byproduct, the CO will kill you before you experience CO2 poisoning.
CO2 is most definitely toxic. Why do you think our bodies expirate it? OSHA considers anything above 6% concentration in the local beathable environment deadly (because it lowers the O2 concentration below 19.5%).