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. 2014 Jan 10;12:27. doi: 10.1186/2052-336X-12-27

Table 2.

Dust storm classification (based on PM 10 concentration) [37],[38]

Category Visibility (m) Wind speed (m/s) PM 10 (μg/m 3 )
Dusty air
 haze
 –
 50–200
Light dust storm
 <2000
 –
 200–500
Dust storm
 <1000
 >17
 500–2000
Strong dust storm
 <200
 >20
 2000–5000
Serious strong DS <50 >25 >5000