This is the 17918th most frequent Russian word.
ухудшению
"Deterioration" or "worsening."
The word 'ухудшению' is used here in the dative case as part of the phrase 'привела к ухудшению', which means 'led to a worsening'.
Экологическая политика правительства привела к ухудшению качества воздуха.
The government's environmental policy has led to a deterioration in air quality.
The word 'ухудшению' is used here to describe the ongoing process of worsening health conditions.
Общее ухудшение здоровья населения стало причиной беспокойства.
The general deterioration in public health has become a cause for concern.
The word 'ухудшению' appears in the context of preventing a 'deterioration' or worsening of a situation.