What are the three disadvantages of the harmattan?

The harmattan, a dry and dusty trade wind in West Africa, presents several disadvantages. Firstly, it can cause respiratory issues and exacerbate existing health problems due to the increased dust and dry air. Secondly, it negatively impacts agriculture by reducing soil moisture and hampering crop growth. Lastly, the harsh conditions can lead to decreased visibility, making travel hazardous and affecting transportation and daily activities.