Here are some excellent Chlorine Accident Data and Summaries:
Summary of Incidents related to tank/drum incidents
| Native ID | Year | Country | Description |
|
3229 |
1968 |
USA |
Chlorination unit in waterworks damaged allowing large quantity of chlorine to escape. |
|
2073 |
1969 |
USA |
Chlorine gas alarm alerted employees to release from unattended discharging tank container at water treatment plant. Time = 2130.valve isolated 1 hour later. Cloud dispersed inside 3 hours.100 people evacuated from nearby restaurant. |
|
3783 |
1979 |
USA |
3500 people fled a chlorine gas cloud from a leak in a 3500pound tank used to treat city water supply. |
|
2130 |
1981 |
USA |
Chlorine leak when fitting broke on tank at rolling hills water treatment facility, owned by fort worth water dept. Leak stopped before evacuation ordered. Two hospitalized workers were not wearing gas masks in violation of plant regulations. |
|
2330 |
1981 |
Brazil |
Chlorine corroded the main valve at water filtration plant owned by Prasa + the resulting rupture allowed most of the chlorine in the 2*1 ton tanks to leak into the atmosphere. 2000 people treated for chlorine exposure. |
|
4227 |
1981 |
Puerto Rico |
Spill of nearly 4 te liquid chlorine at water purification plant gave toxic cloud causing evacuation of 1500. 200 people received emergency treatment in 6 San Juan hospitals. Contents of 3 tanks & most of fourth escaped. |
|
4019 |
1987 |
USA |
Rupture of 1te container of chlorine gas at water treatment plant caused 1000 residents to be evacuated from homes ahead of an advancing chlorine gas cloud. 2 company employees & 2 firefighters injured. |
|
5830 |
1991 |
UK |
1kg liquid chlorine spilled at chlorine drum store at water treatment works because of faulty valve. |
|
6047 |
1991 |
UK |
85 families evacuated because of gas cloud from water treatment works as hundreds of gallons of chlorine leaked, supposedly from barrel. Wall of water set up to prevent cloud from spreading. Village sealed off. |
Summary of Incidents related to pipework incidents
| Native ID | Year | Country | Description |
|
1936 |
1969 |
USA |
Release of chlorine from water treatment plant led to cloud over residential area. One man sleeping affected by fumes later died as did his wife. Safety equipment at plant locked away. Damages claim awarded to children orphaned by deaths. |
|
1988 |
1977 |
USA |
Cloud of chlorine escaped from faulty connection at water treatment plant. Low dense cloud dispersed by wind. |
| 1866 | 1978 | UK | Leak from faulty pipe on chlorine cylinder at water treatment plant.3 injured. |
|
5823 |
1991 |
UK |
Spill from two 30kg cylinders in chlorine building of water treatment plant released chlorine. Incident caused by small crack in pipework which was replaced. Leak stemmed by water authority engineers with BA. |
|
6778 |
1992 |
Hong Kong |
Leakage of chlorine from water treatment works holding twice recommended safety inventory. 150kg chlorine leaked from 3mm hole in dented pipe during transfer operation. Lime powder sprinkled on pipe to neutralize release. |
|
8102 |
1994 |
UK |
Chlorine gas leaked from pipe connected to chemical drums at water treatment works. 1 treated at hospital for breathing problems & 4 families living on site evacuated. Leak believed to have been caused by faulty pressure gauge. |
Summary of Incidents related to use and storage incidents
| Native ID | Year | Country | Description |
|
2270 |
1985 |
France |
Cloud of toxic chlorine gas caused by leak at water treatment plant dispersed after hovering for nearly three hours over the countryside of western france.2 employees were hurt,1 seriously when 37000 cubic meters billowed from the plant. |
|
6380 |
1992 |
Portugal |
Dozens of people taken to hospital after chlorine gas escaped from waterworks overnight. Three were reported in a serious condition & 34 were kept in hospital overnight. |
|
8451 |
1995 |
USA |
Fire in building used to store chlorine for water treatment plant. When water was used to fight fire, white smoke turned black & wind blew noxious fumes toward ocean. 20 firefighters in SCBA who spent time in smoke examined in hospital. |
|
8781 |
1995 |
USA |
Fire at plant making water treatment chemicals caused chlorine cloud to drift over suburb. 100 evacuated from businesses, apartments and University ‘North of Scene’ – fire brought under control in 2.5 hours by 120 firefighters. No injuries. |
|
12782 |
2001 |
France |
A chlorine leak at a water treatment plant forced the evacuation of a village in southern France. |
Summary of Incidents related to transport/cylinder/hose incidents
| Native ID | Year | Country | Description |
|
1889 |
1960 |
USA |
Chlorine spilled from drum on truck, when valve burst according to driver. Chlorine was for water purification purposes. Firemen summoned to dispose of liquid by flushing away and they required treatment for the effects of chlorine inhalation. |
|
2031 |
1978 |
UK |
Leak from chlorine cylinder at water treatment plant. Cause thought to be faulty equipment. No injuries reported. |
|
2059 |
1949 |
USA |
A ton container being transported on a multi-unit railcar was found to be leaking around a valve shank on arrival at a water treatment plant. A Solvay chlorine emergency kit was used to cap the valve. A temp. line let Cl2 to be used from car. |
|
10393 |
1998 |
UK |
Chlorine leaked from a cylinder at a water treatment works. Fire crews were called. It was a small leak and no-one was affected. An investigation has been launched. |
|
13659 |
2002 |
USA |
Hose, which contained metal weave not normally used in chlorine transfer hoses, ruptured on rail car at plant which packages chlorine used for water treatment. Shut off valve at plant and overflow valve on car failed to work. |
|
15220 |
2003 |
USA |
Truck with water treatment chemicals ran off road close to retirement village. Sodium hydroxide, fluorosilic acid and bisulphites released, though chlorine tank remained intact. |