The goal is to learn how to write better.

分析的目的是为了提高科技英语写作水平(不是针对作者)。

Green highlight is used to show good writing.

好好学习：用绿色标出。

Yellow means "questionable."

敢于提问：用黄色标出。

Microplastics in Polar Regions: The role of long range transport

https://www.sciencedirect.com/science/article/pii/S2468584417300132

评论：Better using “long-range”?

Abstract

Microplastics (particles <5 mm) pose a threat to the marine ecosystem that is disproportionate to their tiny size.

评论：Better use “size < 5 mm”? 定语从句是定“threat”,所以，应该用“, which is xxx.”

They have been found in high numbers in sea water and sediments, and are interacting with organisms and the environment in a variety of ways. 

Recently their presence has been confirmed in Polar water, sediment, and sea ice. 

评论：Polar should be lower case?

We review the recent literature on microplastic distribution and transport in marine environments, primarily in the Northern Hemisphere,summarize current understanding, identify gaps in understanding, and suggest future research priorities.

评论：About the word literature.

https://english.stackexchange.com/questions/211225/is-literature-as-in-the-literature-singular-or-plural

Literature is typically used to describe a collective body of writings; as such, it takes a singular verb despite the fact it refers to many works. The word is almost always preceded by an adjective or attributive noun to identify a specific body of works:

English literature

scientific literature

product literature (archaic)

Literature also connotes writings of higher quality within the category and can be used in a plural form, literatures, but is rarely called for.

因为是讲极地，可以用“in the Arctic Ocean”? 

Follow me, if you want to improve your writing skill:

如果你想提高科技英语写作能力，请跟我来...

http://blog.sciencenet.cn/blog-306792-1146690.html