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 illustrates data about the amount of pollution in London's atmosphere, over a four hundred year period between 1600 and 2000.
Overall, sulphur dioxide is the main reason for pollution in London. Despite, falling pollution levels at the end of the period, the levels of sulphur dioxide and smoke always showed an upward trend for more than three centuries.
In 1600, the pollution levels were low with almost zero micrograms per cubic meter. The sulphur dioxide level increased rapidly for almost 120 years, before witnessing its first decline during 1740's. At that time the level of this pollutant is just under 750 micrograms per cubic meter. Following this, the level saw a considerable growth till early 1900 reaching the value of almost 900. Next, the level of the pollutant saw a remarkable decline until 1940. Finally, the level was inconsistent with up and downs till the end of the period reaching the value of zero in the 1990's.
On the other hand, the pattern of smoke levels is almost similar to that of sulphur dioxide with starting from almost zero in 1600 and reaching zero at the end. However, the smoke level is almost always in improving pattern till 1900 where it has reached its maximum value of just under 500 mg per cubic centimeter. Subsequently, the level is inconsistent and declined to zero.
Transition Words or Phrases used:
finally, first, however, so, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 7.0 7.0 100% => OK
Auxiliary verbs: 0.0 1.00243902439 0% => OK
Conjunction : 5.0 6.8 74% => OK
Relative clauses : 3.0 3.15609756098 95% => OK
Pronoun: 7.0 5.60731707317 125% => Less pronouns wanted
Preposition: 39.0 33.7804878049 115% => OK
Nominalization: 4.0 3.97073170732 101% => OK
Performance on vocabulary words:
No of characters: 1117.0 965.302439024 116% => OK
No of words: 225.0 196.424390244 115% => OK
Chars per words: 4.96444444444 4.92477711251 101% => OK
Fourth root words length: 3.87298334621 3.73543355544 104% => OK
Word Length SD: 2.43218745217 2.65546596893 92% => OK
Unique words: 117.0 106.607317073 110% => OK
Unique words percentage: 0.52 0.547539520022 95% => More unique words wanted or less content wanted.
syllable_count: 326.7 283.868780488 115% => OK
avg_syllables_per_word: 1.5 1.45097560976 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 0.0 1.53170731707 0% => OK
Article: 10.0 4.33902439024 230% => Less articles wanted as sentence beginning.
Subordination: 1.0 1.07073170732 93% => OK
Conjunction: 0.0 0.482926829268 0% => OK
Preposition: 5.0 3.36585365854 149% => OK
Performance on sentences:
How many sentences: 12.0 8.94146341463 134% => OK
Sentence length: 18.0 22.4926829268 80% => The Avg. Sentence Length is relatively short.
Sentence length SD: 35.2191551416 43.030603864 82% => OK
Chars per sentence: 93.0833333333 112.824112599 83% => OK
Words per sentence: 18.75 22.9334400587 82% => OK
Discourse Markers: 3.83333333333 5.23603664747 73% => OK
Paragraphs: 4.0 3.83414634146 104% => OK
Language errors: 0.0 1.69756097561 0% => OK
Sentences with positive sentiment : 6.0 3.70975609756 162% => OK
Sentences with negative sentiment : 2.0 1.13902439024 176% => OK
Sentences with neutral sentiment: 4.0 4.09268292683 98% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.188974784321 0.215688989381 88% => OK
Sentence topic coherence: 0.0824090394497 0.103423049105 80% => OK
Sentence topic coherence SD: 0.0515094149889 0.0843802449381 61% => OK
Paragraph topic coherence: 0.136888025501 0.15604864568 88% => OK
Paragraph topic coherence SD: 0.0498066879299 0.0819641961636 61% => OK
Essay readability:
automated_readability_index: 11.3 13.2329268293 85% => Automated_readability_index is low.
flesch_reading_ease: 61.67 61.2550243902 101% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 9.1 10.3012195122 88% => OK
coleman_liau_index: 11.49 11.4140731707 101% => OK
dale_chall_readability_score: 7.41 8.06136585366 92% => OK
difficult_words: 41.0 40.7170731707 101% => OK
linsear_write_formula: 7.5 11.4329268293 66% => OK
gunning_fog: 9.2 10.9970731707 84% => OK
text_standard: 8.0 11.0658536585 72% => OK
What are above readability scores?
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Rates: 73.0337078652 out of 100
Scores by essay e-grader: 6.5 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.