Crayfish help Russia to monitor pollution | News | Al Jazeera

Crayfish help Russia to monitor pollution

Scientists in St Petersburg are using crayfish and snails to monitor pollution levels.

    Scientists in St Petersburg, Russia have been using crayfish and snails to monitor pollution levels.

    The heart-rate stress of the crayfish and snails are monitored and compared to levels recorded before putting the crustaceans into potentially polluted environments.

    The crayfish are put into the river Neva while the snails breathe air from an incinerator which burns St Petersburg's sewage. These creative methods are vital to the protection of the city's four million people.

    Al Jazeera's Barnaby Phillips reports from St Petersburg.

    SOURCE: Al Jazeera


    YOU MIGHT ALSO LIKE

    Interactive: Coding like a girl

    Interactive: Coding like a girl

    What obstacles do young women in technology have to overcome to achieve their dreams? Play this retro game to find out.

    America's Guns: Secret Pipeline to Syria

    America's Guns: Secret Pipeline to Syria

    How has the international arms trade exacerbated conflict in the Middle East? People and Power investigates.

    I remember the day … I designed the Nigerian flag

    I remember the day … I designed the Nigerian flag

    In 1959, a year before Nigeria's independence, a 23-year-old student helped colour the country's identity.