These are, for the most part,&nbsp;edits I would not have done, mainly&nbsp;because&nbsp;(1)your English is at times&nbsp;rather incoherent, so I can't be sure what you're trying&nbsp;to say even in&nbsp;non-science passages and (2)I lack sufficient expertise in the subject matter.&nbsp; For example, there's no way I could have done the edit in which the word "sunscreens" is removed and "water treatment, health" is substituted.&nbsp; How could I possibly know this would be an appropriate edit?&nbsp; Or again, "toxicity of metal oxides" is edited to "toxicity of metal oxide nanoparticles" - I would not have thought of such an edit, because I&nbsp;could&nbsp;not know that the edit is the same as, or a better expression of, the original text.&nbsp; Likewise with the change of "transport mechanisms of metal oxides in heterogenous systems" to "transport of nanoparticles in heterogenous systems."&nbsp; I agree that the edited version reads better,&nbsp; possibly even means something significantly different, but I would not have been capable of creating that version, because I don't have a deep knowledge of the science.&nbsp; (Editing in social sciences, or in more traditional biological sciences and biomedical sciences,&nbsp;for example I can be far more flexible and creative in editing, because I understand the concepts, terminology,&nbsp;and literature.)&nbsp; Other edits in&nbsp;your supervisor's version&nbsp;seem to be excellent ways of making the text more succinct, more literate, but I would not have ventured to make&nbsp;such changes for fear of&nbsp;distorting meaning. &nbsp;I've tried to explain this to you several times previously.&nbsp; I've worked very hard to understand the material well enough to make conservative edits that are in grammatical English and seem logical in terms of the content, but I have to be conservative, particularly in light of your recent complaints that I have over-edited (when I removed content that seemed merely repetitious and not in the usual style of such documents - grant applications etc.).&nbsp;&nbsp; This all merely&nbsp;demonstrates again that you need a different editor.&nbsp;&nbsp; Your manuscripts are highly technical and specialized&nbsp;- and&nbsp;especially given your extensive difficulties with English, they require an editor with a good level of expertise in environmental science and technology, chemistry, etc.&nbsp; I really don't think there's any other way you can get the kind of editing service you need. If EditorWorld can't meet your needs, there are other companies to try, such as <a href="http://www.scitechedit.com/">http://www.scitechedit.com/</a>.&nbsp; I do wish you the best of luck going forward.&nbsp; RebeccaTDE