The graph below shows the pollution levels in London between 1600 and 2000.

The line graph gives information about the pollution levels in London over a 400-year-period starting in 1600.

It is clear that the propotion of sulphur dioxide was by far highest during research period. While all the number of sulphur dioxide and smoke varied around, this figures of sulphur dioxide experienced the most dramatic noticeable change.

In 1600, either sulphur dioxide or smoke stood at very low. There was a large increase in the number of sulphur dioxide from 1600 to 1770, at over 750 mircograms per cubic metre. Afterwards, it jumped to 825 mircograms per cubic metre in 1990. However, it dropped dramatically to near 0 in 2000.

This figure of smoke also had a considerably grow to below 500 mircograms per cubic metre in 1990. Then, it fells enormously to 0 in 2000. There was a huge change from 1990 to 2000.

Votes
Average: 5.6 (1 vote)

Transition Words or Phrases used:
also, however, so, then, while

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on Part of Speech:
To be verbs : 4.0 7.0 57% => More to be verbs wanted.
Auxiliary verbs: 0.0 1.00243902439 0% => OK
Conjunction : 2.0 6.8 29% => More conjunction wanted.
Relative clauses : 1.0 3.15609756098 32% => OK
Pronoun: 7.0 5.60731707317 125% => Less pronouns wanted
Preposition: 31.0 33.7804878049 92% => OK
Nominalization: 3.0 3.97073170732 76% => OK

Performance on vocabulary words:
No of characters: 699.0 965.302439024 72% => OK
No of words: 143.0 196.424390244 73% => More content wanted.
Chars per words: 4.88811188811 4.92477711251 99% => OK
Fourth root words length: 3.45807182446 3.73543355544 93% => OK
Word Length SD: 2.66773822342 2.65546596893 100% => OK
Unique words: 87.0 106.607317073 82% => More unique words wanted.
Unique words percentage: 0.608391608392 0.547539520022 111% => OK
syllable_count: 202.5 283.868780488 71% => OK
avg_syllables_per_word: 1.4 1.45097560976 96% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 6.0 1.53170731707 392% => Less pronouns wanted as sentence beginning.
Article: 1.0 4.33902439024 23% => OK
Subordination: 1.0 1.07073170732 93% => OK
Conjunction: 0.0 0.482926829268 0% => OK
Preposition: 2.0 3.36585365854 59% => More preposition wanted as sentence beginning.

Performance on sentences:
How many sentences: 10.0 8.94146341463 112% => OK
Sentence length: 14.0 22.4926829268 62% => The Avg. Sentence Length is relatively short.
Sentence length SD: 34.157868786 43.030603864 79% => OK
Chars per sentence: 69.9 112.824112599 62% => OK
Words per sentence: 14.3 22.9334400587 62% => OK
Discourse Markers: 3.0 5.23603664747 57% => More transition words/phrases wanted.
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: 5.0 4.09268292683 122% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.168232923842 0.215688989381 78% => OK
Sentence topic coherence: 0.0690934083986 0.103423049105 67% => OK
Sentence topic coherence SD: 0.0811172441769 0.0843802449381 96% => OK
Paragraph topic coherence: 0.118523119185 0.15604864568 76% => OK
Paragraph topic coherence SD: 0.107201699585 0.0819641961636 131% => OK

Essay readability:
automated_readability_index: 8.8 13.2329268293 67% => Automated_readability_index is low.
flesch_reading_ease: 74.19 61.2550243902 121% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 6.4 10.3012195122 62% => OK
coleman_liau_index: 10.49 11.4140731707 92% => OK
dale_chall_readability_score: 7.64 8.06136585366 95% => OK
difficult_words: 30.0 40.7170731707 74% => More difficult words wanted.
linsear_write_formula: 8.0 11.4329268293 70% => OK
gunning_fog: 7.6 10.9970731707 69% => OK
text_standard: 8.0 11.0658536585 72% => OK
What are above readability scores?

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More content wanted.
Minimum 250 words wanted.

Rates: 56.1797752809 out of 100
Scores by essay e-grader: 5.0 Out of 9
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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.