the chart below shows the average daily minimum and maximum levels of two air pollutants in four big cities in 2000.
The chart displays the peak and minimum levels of sulphur dioxide and nitrous dioxide, measured in micrograms per cubic metre, on a typical day in four major urban centres.
Mexico City’s peak N20 level is 207, which is twice as high as the level in Los Angeles and four times higher than the levels in Calcutta and Beijing. Similarly, the minimum N20 level of 113 in Mexico City was 8 times higher than Beijing, which was the city with the lowest minimum N2O level, while its N20 level was 3 and 4 times higher than those of Los Angeles and Calcutta.
With respect to SO2 levels, Los Angeles has the lowest average high and lows by a significant amount. Peak SO2 levels in Los Angeles in 2000 were only 10, which was 6 times lower than the next city: Calcutta. At the other end of the scale, peak SO2 levels in Beijing were 130, while in Mexico City they were at 200. Los Angeles also had the lowest minimum at just 2, making it 40 times lower than Mexico City’s minimum. Interestingly, Beijing’s low was 25, which was only half of Calcutta’s low, which was not far below its peak.
From the chart it is clear that Mexico City has by far the highest level of pollutants overall, while the other cities have some similarities and differences in the level of pollutants in their atmospheres.
Transition Words or Phrases used:
also, if, similarly, so, while, with respect to
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 13.0 7.0 186% => OK
Auxiliary verbs: 0.0 1.00243902439 0% => OK
Conjunction : 8.0 6.8 118% => OK
Relative clauses : 6.0 3.15609756098 190% => OK
Pronoun: 8.0 5.60731707317 143% => Less pronouns wanted
Preposition: 29.0 33.7804878049 86% => OK
Nominalization: 0.0 3.97073170732 0% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1085.0 965.302439024 112% => OK
No of words: 235.0 196.424390244 120% => OK
Chars per words: 4.6170212766 4.92477711251 94% => OK
Fourth root words length: 3.91531732006 3.73543355544 105% => OK
Word Length SD: 2.47689549988 2.65546596893 93% => OK
Unique words: 117.0 106.607317073 110% => OK
Unique words percentage: 0.497872340426 0.547539520022 91% => More unique words wanted or less content wanted.
syllable_count: 330.3 283.868780488 116% => 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: 2.0 4.33902439024 46% => OK
Subordination: 3.0 1.07073170732 280% => Less adverbial clause wanted.
Conjunction: 0.0 0.482926829268 0% => OK
Preposition: 4.0 3.36585365854 119% => OK
Performance on sentences:
How many sentences: 9.0 8.94146341463 101% => OK
Sentence length: 26.0 22.4926829268 116% => OK
Sentence length SD: 44.8825628106 43.030603864 104% => OK
Chars per sentence: 120.555555556 112.824112599 107% => OK
Words per sentence: 26.1111111111 22.9334400587 114% => OK
Discourse Markers: 5.22222222222 5.23603664747 100% => OK
Paragraphs: 4.0 3.83414634146 104% => OK
Language errors: 0.0 1.69756097561 0% => OK
Sentences with positive sentiment : 2.0 3.70975609756 54% => More positive sentences wanted.
Sentences with negative sentiment : 4.0 1.13902439024 351% => Less negative sentences wanted.
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: 0.218377345566 0.215688989381 101% => OK
Sentence topic coherence: 0.103463436031 0.103423049105 100% => OK
Sentence topic coherence SD: 0.0585188592844 0.0843802449381 69% => OK
Paragraph topic coherence: 0.153518580384 0.15604864568 98% => OK
Paragraph topic coherence SD: 0.0419794479262 0.0819641961636 51% => OK
Essay readability:
automated_readability_index: 13.4 13.2329268293 101% => OK
flesch_reading_ease: 62.01 61.2550243902 101% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 11.1 10.3012195122 108% => OK
coleman_liau_index: 9.81 11.4140731707 86% => OK
dale_chall_readability_score: 8.02 8.06136585366 99% => OK
difficult_words: 46.0 40.7170731707 113% => OK
linsear_write_formula: 17.0 11.4329268293 149% => OK
gunning_fog: 12.4 10.9970731707 113% => OK
text_standard: 17.0 11.0658536585 154% => OK
What are above readability scores?
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Rates: 67.4157303371 out of 100
Scores by essay e-grader: 6.0 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.