the chart below shows the average daily minimum and maximum levels of two air pollutants in four big cities in 2000.

The provided chart represents the average minimum and maximum amount of Sulphur Dioxide and Dinitrous Oxide being disposed daily in various cities in 2000. Overall, Mexico city was the most polluted city with the highest level of both air pollutants.

As can be seen from the chart, an equal maximum volume of both S02 and N20 of approximately 200 microgram per m3 was observed m Mexico City, which doubled the minimum amount of around 80 to 100 microgram per m3. Los Angeles was primarily contaminated by N2O, with the minimum and maximum N2O levels being 39 and 104 micrograms per m3 respectively, while the maximum volume of S02 stood at only 10 microgram per m .

The second most polluted city was Beijing where a minimum of 25 microgram per m3 and a maximum of 130 micrograms per m of S02 was recorded on a daily basis, whereas the level of N20 ranged from 14 to 54 units. Air quality m Calcuta was polluted by approximately 47 to 59 microgram per m3 of S02 and 30 to 52 micrograms per m3 of the other air pollutant.

Votes
Average: 7.3 (1 vote)
Essays by the user:

Grammar and spelling errors:
Line 3, column 97, Rule ID: CD_NN[1]
Message: Possible agreement error. The noun 'microgram' seems to be countable, so consider using: 'micrograms'.
Suggestion: micrograms
...f both S02 and N20 of approximately 200 microgram per m3 was observed m Mexico City, whic...
^^^^^^^^^
Line 3, column 195, Rule ID: CD_NN[1]
Message: Possible agreement error. The noun 'microgram' seems to be countable, so consider using: 'micrograms'.
Suggestion: micrograms
... the minimum amount of around 80 to 100 microgram per m3. Los Angeles was primarily conta...
^^^^^^^^^
Line 3, column 398, Rule ID: CD_NN[1]
Message: Possible agreement error. The noun 'microgram' seems to be countable, so consider using: 'micrograms'.
Suggestion: micrograms
... maximum volume of S02 stood at only 10 microgram per m . The second most polluted cit...
^^^^^^^^^
Line 3, column 413, Rule ID: COMMA_PARENTHESIS_WHITESPACE
Message: Don't put a space before the full stop
Suggestion: .
... of S02 stood at only 10 microgram per m . The second most polluted city was Be...
^^
Line 5, column 65, Rule ID: CD_NN[1]
Message: Possible agreement error. The noun 'microgram' seems to be countable, so consider using: 'micrograms'.
Suggestion: micrograms
... city was Beijing where a minimum of 25 microgram per m3 and a maximum of 130 micrograms ...
^^^^^^^^^
Line 5, column 272, Rule ID: CD_NN[1]
Message: Possible agreement error. The noun 'microgram' seems to be countable, so consider using: 'micrograms'.
Suggestion: micrograms
... was polluted by approximately 47 to 59 microgram per m3 of S02 and 30 to 52 micrograms p...
^^^^^^^^^

Transition Words or Phrases used:
second, whereas, while

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

Performance on Part of Speech:
To be verbs : 9.0 7.0 129% => 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: 0.0 5.60731707317 0% => OK
Preposition: 27.0 33.7804878049 80% => 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: 842.0 965.302439024 87% => OK
No of words: 185.0 196.424390244 94% => More content wanted.
Chars per words: 4.55135135135 4.92477711251 92% => OK
Fourth root words length: 3.68801715136 3.73543355544 99% => OK
Word Length SD: 2.67249190319 2.65546596893 101% => OK
Unique words: 99.0 106.607317073 93% => More unique words wanted.
Unique words percentage: 0.535135135135 0.547539520022 98% => OK
syllable_count: 253.8 283.868780488 89% => 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: 3.0 4.33902439024 69% => OK
Subordination: 2.0 1.07073170732 187% => OK
Conjunction: 0.0 0.482926829268 0% => OK
Preposition: 1.0 3.36585365854 30% => More preposition wanted as sentence beginning.

Performance on sentences:
How many sentences: 6.0 8.94146341463 67% => Need more sentences. Double check the format of sentences, make sure there is a space between two sentences, or have enough periods. And also check the lengths of sentences, maybe they are too long.
Sentence length: 30.0 22.4926829268 133% => The Avg. Sentence Length is relatively long.
Sentence length SD: 42.7200187266 43.030603864 99% => OK
Chars per sentence: 140.333333333 112.824112599 124% => OK
Words per sentence: 30.8333333333 22.9334400587 134% => OK
Discourse Markers: 3.66666666667 5.23603664747 70% => OK
Paragraphs: 3.0 3.83414634146 78% => More paragraphs wanted.
Language errors: 6.0 1.69756097561 353% => Less language errors wanted.
Sentences with positive sentiment : 1.0 3.70975609756 27% => More positive sentences wanted.
Sentences with negative sentiment : 3.0 1.13902439024 263% => Less negative sentences wanted.
Sentences with neutral sentiment: 2.0 4.09268292683 49% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.233069914466 0.215688989381 108% => OK
Sentence topic coherence: 0.14832220875 0.103423049105 143% => OK
Sentence topic coherence SD: 0.0766954579627 0.0843802449381 91% => OK
Paragraph topic coherence: 0.203999077293 0.15604864568 131% => OK
Paragraph topic coherence SD: 0.117427896044 0.0819641961636 143% => OK

Essay readability:
automated_readability_index: 15.4 13.2329268293 116% => OK
flesch_reading_ease: 57.95 61.2550243902 95% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 12.6 10.3012195122 122% => OK
coleman_liau_index: 9.7 11.4140731707 85% => OK
dale_chall_readability_score: 8.37 8.06136585366 104% => OK
difficult_words: 38.0 40.7170731707 93% => OK
linsear_write_formula: 13.5 11.4329268293 118% => OK
gunning_fog: 14.0 10.9970731707 127% => OK
text_standard: 14.0 11.0658536585 127% => 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.