The sterilisation campaign will continue for 10 days.
Using state-of-the-art space technologies, DMSat-1 will monitor, collect and analyse environmental data as well as measure air pollutants and greenhouse gases.
The launch is part of a high-technology project undertaken to develop solutions to environmental challenges and address climate change. The satellite will be launched from the Baikonur Cosmodrome in Kazakhstan.
The Dubai Municipality said that the total commitment rate reached 98 per cent in the emirate, the number of inspection visits reached 2,393, 2 establishments were closed, and 35 warnings were made.
The Coromandel Express, which runs from Kolkata to Chennai, derailed and fell on the opposite track, with many people still trapped, the reports said.
Sheikh Mohammed added in a tweet on Twitter: "We found its executive director at the service counters, receiving customers, speeding up procedures, and contributing to clearing transactions. The secret shopper assured us that providing the service did not exceed five minutes."
The first lady arrived in Cairo from Amman, where she attended the wedding of Crown Prince Hussein. She is travelling to Morocco on Saturday before heading to Portugal, the final stop of her tour, on Monday.