You should spend about 20 minutes on this task.
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.
Write at least 150 words.
The line chart reports the pollution levels in London between the late 1500s and prior to 2000. Smoke and Sulphur dioxide (SO2) concentrations were measured in micrograms per cubic metre.
The pollution was the highest between 1700 and 1900, with the SO2 contributed the most compared to the smoke. However, for the last a century, the pollution rates gradually diminished to the similar level in the late 1500s.
Between the late 1500s and 1700s, the concentration of SO2 surged rapidly from almost zero to just over 750, while the smoke level was three times lower at the same period. Subsequently, the concentrations of both the SO2 and the smoke were fluctuated for nearly 200 years. At that period, while the SO2 level only increased slightly to around 900, the smoke concentration dramatically rose to almost 500. Finally, from the 1900s until just before 2000, the level of the SO2 and the smoke fell down significantly to almost zero.
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Transition Words or Phrases used:
but, finally, however, if, so, 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 : 6.0 6.8 88% => OK
Relative clauses : 1.0 3.15609756098 32% => OK
Pronoun: 1.0 5.60731707317 18% => OK
Preposition: 26.0 33.7804878049 77% => OK
Nominalization: 5.0 3.97073170732 126% => OK
Performance on vocabulary words:
No of characters: 789.0 965.302439024 82% => OK
No of words: 158.0 196.424390244 80% => More content wanted.
Chars per words: 4.99367088608 4.92477711251 101% => OK
Fourth root words length: 3.54539209256 3.73543355544 95% => OK
Word Length SD: 2.66064537447 2.65546596893 100% => OK
Unique words: 89.0 106.607317073 83% => OK
Unique words percentage: 0.563291139241 0.547539520022 103% => OK
syllable_count: 227.7 283.868780488 80% => OK
avg_syllables_per_word: 1.4 1.45097560976 96% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 0.0 1.53170731707 0% => OK
Interrogative: 0.0 0.114634146341 0% => OK
Article: 7.0 4.33902439024 161% => OK
Subordination: 2.0 1.07073170732 187% => OK
Conjunction: 0.0 0.482926829268 0% => OK
Preposition: 4.0 3.36585365854 119% => OK
Performance on sentences:
How many sentences: 8.0 8.94146341463 89% => OK
Sentence length: 19.0 22.4926829268 84% => OK
Sentence length SD: 24.6978617496 43.030603864 57% => The essay contains lots of sentences with the similar length. More sentence varieties wanted.
Chars per sentence: 98.625 112.824112599 87% => OK
Words per sentence: 19.75 22.9334400587 86% => OK
Discourse Markers: 4.5 5.23603664747 86% => OK
Paragraphs: 3.0 3.83414634146 78% => More paragraphs wanted.
Language errors: 0.0 1.69756097561 0% => OK
Sentences with positive sentiment : 1.0 3.70975609756 27% => More positive sentences wanted.
Sentences with negative sentiment : 1.0 1.13902439024 88% => OK
Sentences with neutral sentiment: 6.0 4.09268292683 147% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.104898660677 0.215688989381 49% => OK
Sentence topic coherence: 0.0567917537346 0.103423049105 55% => OK
Sentence topic coherence SD: 0.0568957215705 0.0843802449381 67% => OK
Paragraph topic coherence: 0.087375562364 0.15604864568 56% => OK
Paragraph topic coherence SD: 0.0287111742509 0.0819641961636 35% => Paragraphs are similar to each other. Some content may get duplicated or it is not exactly right on the topic.
Essay readability:
automated_readability_index: 11.9 13.2329268293 90% => Automated_readability_index is low.
flesch_reading_ease: 69.11 61.2550243902 113% => OK
smog_index: 8.8 6.51609756098 135% => OK
flesch_kincaid_grade: 8.3 10.3012195122 81% => OK
coleman_liau_index: 11.66 11.4140731707 102% => OK
dale_chall_readability_score: 8.08 8.06136585366 100% => OK
difficult_words: 35.0 40.7170731707 86% => OK
linsear_write_formula: 11.0 11.4329268293 96% => OK
gunning_fog: 9.6 10.9970731707 87% => OK
text_standard: 9.0 11.0658536585 81% => OK
What are above readability scores?
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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.