1,491 people in Syria are known to have been killed in gas attacks

December 2012 to October 2015

100 km

100 miles

East Ghouta

9,400 people affected and

1,242 killed by a Sarin gas

attack in August 2013

Unconfirmed poisonous gas

Chlorine

Mustard

Sarin

Damascus

Homs

Raqqa

Aleppo

Hama

Tartus

Latakia

Turkey

Syria

Jordan

Lebanon

Iraq

400 km

300

December 2012 to October 2015

100 km

100 miles

East Ghouta

9,400 people affected and

1,242 killed by a Sarin gas

attack in August 2013

Unconfirmed poisonous gas

Chlorine

Mustard

Sarin

Damascus

Homs

Raqqa

Aleppo

Hama

Tartus

Latakia

Turkey

Syria

Jordan

Lebanon

Iraq

100 km

100 miles

East Ghouta

9,400 people affected and

1,242 killed by a Sarin gas

attack in August 2013

December 2012 to October 2015

Unconfirmed

poisonous gas

Chlorine

Mustard

Sarin

Damascus

Homs

Raqqa

Aleppo

Hama

Tartus

Latakia

Turkey

Syria

Jordan

Lebanon

Iraq