Air Quality Trends in Urban Areas - PM2.5 Levels Analysis

Very Hard Data Representation Understanding Graphs And Tables

A team of environmental scientists monitored air quality in three urban areas (Area X, Area Y, and Area Z) over a period of one month. The data collected includes the average levels of particulate matter (PM2.5) measured in micrograms per cubic meter (µg/m³).

The graph below depicts the average PM2.5 levels in each area for each week:

Graph of PM2.5 levels in Areas X, Y, and Z over one month

Based on this data, what conclusions can be drawn regarding the air quality trends in these areas?

Area Y consistently had the highest levels of PM2.5 across all weeks.

Area X shows a significant decrease in PM2.5 levels towards the end of the month.

Area Z had unstable PM2.5 levels, varying greatly from week to week.

All areas exceeded the recommended PM2.5 levels by the end of the observation period.

Hint

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