The graph below shows the pollution levels in London between 1600 and 2000.
Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
The graph shows two air pollutants(sulphur dioxide and smoke) average levels in London between 1600 and 2000. Units are measured in micrograms per cubic meter.
Overall, it is clear that the levels of sulphur dioxide and smoke had a similar pattern during this period, but there were always higher level of sulphur dioxide than the level of smoke in the atmosphere. They were both minimal in 1600. However, they grow dramatically and reach a peak in about 1900. After this, they fell sharply to almost disappear by 2000.
Looking at the information in more detail, we can see that sulphur dioxide reach a peak of nearly 900 micrograms per cubic meter in 1850, while the pollution level of smoke up to 400 micrograms per cubic meter.
Over the next one hundred year, the level of pollution experienced an inclined period and finally be got rid of, although there were a great deal of fluctuation between 1925 and 1960.
Transition Words or Phrases used:
but, finally, however, look, while
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 6.0 7.0 86% => OK
Auxiliary verbs: 1.0 1.00243902439 100% => OK
Conjunction : 7.0 6.8 103% => OK
Relative clauses : 2.0 3.15609756098 63% => OK
Pronoun: 9.0 5.60731707317 161% => Less pronouns wanted
Preposition: 26.0 33.7804878049 77% => OK
Nominalization: 4.0 3.97073170732 101% => OK
Performance on vocabulary words:
No of characters: 761.0 965.302439024 79% => OK
No of words: 158.0 196.424390244 80% => More content wanted.
Chars per words: 4.8164556962 4.92477711251 98% => OK
Fourth root words length: 3.54539209256 3.73543355544 95% => OK
Word Length SD: 2.52236431613 2.65546596893 95% => OK
Unique words: 100.0 106.607317073 94% => More unique words wanted.
Unique words percentage: 0.632911392405 0.547539520022 116% => OK
syllable_count: 226.8 283.868780488 80% => OK
avg_syllables_per_word: 1.4 1.45097560976 96% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 5.0 1.53170731707 326% => Less pronouns wanted as sentence beginning.
Article: 2.0 4.33902439024 46% => OK
Subordination: 3.0 1.07073170732 280% => Less adverbial clause wanted.
Conjunction: 1.0 0.482926829268 207% => Less conjunction wanted as sentence beginning.
Preposition: 2.0 3.36585365854 59% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 8.0 8.94146341463 89% => OK
Sentence length: 19.0 22.4926829268 84% => The Avg. Sentence Length is relatively short.
Sentence length SD: 69.7951242925 43.030603864 162% => OK
Chars per sentence: 95.125 112.824112599 84% => OK
Words per sentence: 19.75 22.9334400587 86% => OK
Discourse Markers: 4.25 5.23603664747 81% => OK
Paragraphs: 4.0 3.83414634146 104% => OK
Language errors: 0.0 1.69756097561 0% => OK
Sentences with positive sentiment : 4.0 3.70975609756 108% => OK
Sentences with negative sentiment : 1.0 1.13902439024 88% => OK
Sentences with neutral sentiment: 3.0 4.09268292683 73% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.169161167124 0.215688989381 78% => OK
Sentence topic coherence: 0.0739533627624 0.103423049105 72% => OK
Sentence topic coherence SD: 0.0863055175603 0.0843802449381 102% => OK
Paragraph topic coherence: 0.1109216954 0.15604864568 71% => OK
Paragraph topic coherence SD: 0.0679248288928 0.0819641961636 83% => OK
Essay readability:
automated_readability_index: 11.1 13.2329268293 84% => Automated_readability_index is low.
flesch_reading_ease: 69.11 61.2550243902 113% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 8.3 10.3012195122 81% => OK
coleman_liau_index: 10.68 11.4140731707 94% => OK
dale_chall_readability_score: 7.98 8.06136585366 99% => OK
difficult_words: 34.0 40.7170731707 84% => More difficult words wanted.
linsear_write_formula: 6.5 11.4329268293 57% => Linsear_write_formula is low.
gunning_fog: 9.6 10.9970731707 87% => OK
text_standard: 8.0 11.0658536585 72% => OK
What are above readability scores?
---------------------
Rates: 78.6516853933 out of 100
Scores by essay e-grader: 7.0 Out of 9
---------------------
Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.