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The engines of on-road vehicles have advanced emission controls which are not found on those non-road engines. The non-road engines also emit air pollution particles at much higher rates
Fairly broad claim, with not much context - needs calling out, and if true a good reference. There are many types of "non-road" engine - why are they claimed to be worse? Prof.Haddock (talk) 00:47, 18 August 2014 (UTC)[reply]
Reference provided in the article. It may need rewording. Please do so as needed. Z22 (talk) 05:04, 18 August 2014 (UTC)[reply]
