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

The bar chart represents the minimum and maximum volume of SO2 and N2O being disposed in four major urban centres.
Overall, Mexico city was the most polluted city with the highest level of both air pollutants.
To begin with, an almost equal maximum volume of both S02 and N20 of approximately 200 micrograms per m3 was observed in Mexico city, which was nearly twice the minimum amount of about 100 micrograms per m3. Meanwhile, Los Angeles was highly contaminated with N2O, with the minimum and maximum N2O amount of 39 and 104 micrograms per m3 respectively, whereas the maximum SO2 volume was only 10 micrograms.
The second most polluted city was Beijing where the level of SO2 ranged from 25 to 130 micrograms per m3, while of NO2 was between 14 and 54 micrograms. Calcuta was polluted by a minimum of 47 micrograms per m3 and a maximum of 59 micrograms of SO2 and from 30 to 52 micrograms of N2O.

Votes
Average: 8.1 (2 votes)
Essays by the user:

Transition Words or Phrases used:
second, so, whereas, while, to begin with

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

Performance on Part of Speech:
To be verbs : 9.0 7.0 129% => OK
Auxiliary verbs: 0.0 1.00243902439 0% => OK
Conjunction : 8.0 6.8 118% => OK
Relative clauses : 2.0 3.15609756098 63% => OK
Pronoun: 0.0 5.60731707317 0% => OK
Preposition: 26.0 33.7804878049 77% => 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: 747.0 965.302439024 77% => OK
No of words: 161.0 196.424390244 82% => More content wanted.
Chars per words: 4.6397515528 4.92477711251 94% => OK
Fourth root words length: 3.56210296601 3.73543355544 95% => OK
Word Length SD: 2.65928469135 2.65546596893 100% => OK
Unique words: 86.0 106.607317073 81% => More unique words wanted.
Unique words percentage: 0.534161490683 0.547539520022 98% => OK
syllable_count: 224.1 283.868780488 79% => 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: 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: 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: 26.0 22.4926829268 116% => OK
Sentence length SD: 41.2620352813 43.030603864 96% => OK
Chars per sentence: 124.5 112.824112599 110% => OK
Words per sentence: 26.8333333333 22.9334400587 117% => OK
Discourse Markers: 6.83333333333 5.23603664747 131% => OK
Paragraphs: 4.0 3.83414634146 104% => OK
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 : 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: 0.167818522344 0.215688989381 78% => OK
Sentence topic coherence: 0.109673688896 0.103423049105 106% => OK
Sentence topic coherence SD: 0.056040371739 0.0843802449381 66% => OK
Paragraph topic coherence: 0.135717713318 0.15604864568 87% => OK
Paragraph topic coherence SD: 0.0528131258081 0.0819641961636 64% => OK

Essay readability:
automated_readability_index: 13.8 13.2329268293 104% => 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: 9.93 11.4140731707 87% => OK
dale_chall_readability_score: 7.48 8.06136585366 93% => OK
difficult_words: 26.0 40.7170731707 64% => More difficult words wanted.
linsear_write_formula: 13.5 11.4329268293 118% => OK
gunning_fog: 12.4 10.9970731707 113% => OK
text_standard: 14.0 11.0658536585 127% => OK
What are above readability scores?

---------------------

Rates: 61.797752809 out of 100
Scores by essay e-grader: 5.5 Out of 9
---------------------
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.