请使用灵活多样的词汇表达;句式变化多样,句法方面做的很棒;语言不流畅;连词使用偏少;请注意分段;可以适当增加副词的使用。
From the monitoring of the situation, China offshore floating rubbish is mainly plastic bags, plastic bottles and styrofoam pieces etc.. The large and large piece of garbage floating average number 22 per square kilometer; surface water and small piece of garbage in the average number of 1662 per square kilometer, density of 9 kg / square kilometers. The classification statistics show, the largest number of plastic waste, accounted for 54% of the total; followed by polystyrene foam and wood category accounted for 23% and 6%, respectively.