A new study by DIPNDIVE has highlighted significant environmental challenges in major tourist cities worldwide, with Cairo emerging as the most polluted destination.
The comprehensive analysis examined pollution levels in top global tourist destinations, ranking cities based on air quality, noise levels, water quality, and waste management.
Cairo topped the list with the highest pollution score of 98, despite attracting 14.9 million visitors annually.
Los Angeles ranked second, with a pollution score of 51.17. As the world’s third most visited city, drawing 49.1 million tourists yearly, Los Angeles faces serious air quality issues.
The city recorded an Air Quality Index of 116 and PM2.5 levels averaging 41.5 µg/m³.
Hong Kong completed the top three, scoring 50.33 on the pollution index.
The city’s Air Quality Index reached 83, with PM2.5 concentrations at 26.5 µg/m³ — five times the World Health Organisation’s recommended safe limit.
“Travel is one of the most enriching experiences, but it’s important to recognize how environmental factors can impact our journeys,” a DIPNDIVE spokesperson said.
The study analysed multiple environmental indicators across ten major tourist destinations, including noise pollution, air quality, and water quality.
PM2.5 concentrations emerged as a critical concern, with most cities significantly exceeding WHO safety standards.
Bangkok and San Diego rounded out the top five most polluted cities, each facing unique environmental challenges. Notably, Cancun recorded the highest noise pollution, with levels averaging 103 decibels.
The research underscores the growing need for sustainable tourism practices and environmental management in popular global destinations.
Cities must balance tourism growth with environmental protection to ensure long-term destination viability.
The methodology involved collecting data from platforms like Statista, and weighing various pollution indicators to create a comprehensive environmental score for each destination.
