In high concentrations lead can cause kidney and brain damage.

This high concentration and oppressive treatment of the slave population led to rebellions.

Household cleaning products may contain 5-10% of ammonia as a higher concentration could lead to injury.

The concentration of offices in the main quarter has led to increase real estate prices due to the increased demand and reduced space.

The concentration of human energy and ingenuity on Earth must lead to an explosion, sooner or later.

He suggested, also, that an undue concentration on the new natural philosophy might lead to a certain intellectual arrogance.

Its concentration of religious organizations has led some to nickname the building the God Box.

Higher concentrations can lead to unconsciousness and coma after prolonged exposure.

The concentration of industry around a major rail stop also led to the rise of banking and finance within the city as well.

Such a concentration could lead to higher prices and deteriorating services, the critics fear.