Developments during the year
Is it safe to breathe at all times …..
Monthly visions of the Grand Toulouse environment
Sensor readings are performed for each month and processed in agreement.
The summary results are presented through the following icons in the corresponding articles.
The detailed analyses are limited to January in the “Analyses” tab.
The summary results are presented in the associated page and the detailed analysis in the Toulouse region is presented for this particular month in the tab “Analyses”.
The values recorded in February are significantly lower than in January 2024 and the summary results are included in the link opposite.
The values recorded in March are stable compared to the previous month; the summary results are included in the link opposite.
The values recorded in April are low and comparable to the previous month; the summary results are included in the link opposite.
The values recorded in May are very low showing a better situation than in the previous month; the summary results are included in the link opposite.
The values recorded in June are low despite a degradation compared to the situation in the previous month; the summary results are included in the link opposite.
The values recorded in July are acceptable and comparable to the situation in the previous month; the summary results are included in the link opposite.
Average evolution of surveys over 2024
Trends in PM10 and PM2.5 concentrations show a downward trend over the early part of the year, but with a marked rise in levels in June confirmed in July and increased in August. The average levels found are relatively acceptable against the currently recommended WHO standard.
The average temperature in Toulouse is above the average temperature recorded in recent years, reflecting the observed global warming.
Changes in concentration and average temperature, although showing similar trends, do not allow a correlation between the two factors to be deduced. This is also confirmed through the detailed statements provided in the monthly tabs provided.
The high concentration point in the Toulouse suburbs over the month of January results from a sensitivity of citizen sensors to fog insufficiently corrected; however, the fog phenomenon did not reproduce over the following months.
