Hence, further studies would be valuable in order to clarify whether other forms of lung irritation, such as air pollution, contribute to the triggering of multiple sclerosis.

因此，为了阐明其他形式的肺刺激，如空气污染，是否也能促进多发性硬化的发生，采取进一步的研究将是很有价值的。

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Planners have asked developer Cory Wheelabrator to clarify concerns over noise, dust, smell, air pollution and health at the site near King's Lynn.

BBC: King's Lynn waste incinerator out for second consultation

But at the same time, we know when there are ads on the air that are distorting his record, we do have to clarify and put out the accurate information about what's the truth.

WHITEHOUSE: The White House