Complex sentence: However, on 25th of August 1993 Ak was excluded from the Writers Association after publishing investigative articles about major ecological problems in Turkmenistan, the high rates of infant and maternal death and the reason behind these awful statistics--overuse of chemicals and pesticides in agriculture.
Split into simpler sentences: However, on 25th of August 1993 Ak was excluded from the Writers Association after publishing investigative articles about major ecological problems in Turkmenistan. Ak wrote many critical articles about the enormous ecological problems that he had exposed in Central Asia--the shockingly high rates of infant and maternal death and the reason behind these awful statistics--overuse of chemicals and pesticides in agriculture.