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care is needed when interpreting this figure. The NOx emissions limit for a Euro 2 diesel car is deduced as the limit was set for combined pollutants (HC + NOx) and the test procedure changed between Euro 2 and Euro 3. The trend of NOx emission factors is based on emission functions provided by COPERT 4 at speed 33.6 km/h.
Try to cool off without resorting to air conditioning.
The use of A/C can increase your electricity bill by 33 %. A fan requires one tenth of the energy used by an A/C system; sunshades, blinds, shutters and the cool of the night use no energy at all.
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