WHY DID IT EXPLODE?• A TANK IN THE PROCESS OF REMOVING ETHYLENE GLYCOL THROUGH DISTILLATION EXPLODEDDUE TO OVERHEATING.• THE WORKERS WHERE UNAWARE THE WHOLE TIME THAT RISE IN TEMPERATURE WAS OCCURRINGIT TOOK SEVEN HOURS FOR THE REACTOR VALVE TO EXPLODETHE RISING TEMPERATURE AND EXPANSION INSIDE THE VALVEWAS DUE TO A RUNAWAY REACTIONA RUNAWAY REACTION IS A REACTION THAT LOSES ALLCONTROL AND CONTINUES TO EXPAND ANGROWWHAT HAPPENED?THE SEVESO DISASTER TOOK PLACE ON JULY 10, 1976 IN THE LOMBARDY REGION OF ITALYTHE DISASTER WAS DUE TO AN EXPLOSION IN ONE OF THE CHEMICAL PLANTSLEAD TO THE LARGEST RELEASE OF DIOXIN INTO THE ATMOSPHERETETRACHLORODIBENZOTETRACHLORODIBENZO OR TCDD WAS ONE OF THE CHEMICALS RELEASED INTO THE AIR AFTERTHE EXPLOSION• TCDD ISMOST KNOWN FOR ITS ROLE IN AGENT ORANGE, WHICH WAS AN HERBICIDE USEDDURING THE VIETNAM WAR.• TCDD ISALSO FOUND IN:-BLEACHING WOOD PULP-BURNING GARBAGE-METAL SMELTING-CHEMICAL PRODUCTION.THE IMMEDIATE EFFECT• AREAS OF THE LOMBARDY REGION THAtWERE EXPOSED TO THE CHEMICALSRELEASED INCLUDE:-MEDA• DESIO-CESANO MADERNO-BARLASSINE AND BOVISIO MASCIAGO-OVER 37,000 PEOPLE WERE AFFECTEDSIDE EFFECTS:PEOPLE WERE EXPERIENCING:-BLURRED VISIONS-CHLORACNEBAD CASE OF ACNEBLACKHEADS, CYSTS,AND NODULESCLEANING UPJANUARY OF 1977- THE GOVERNMENT ORDERED A CLEANUP OF THE AREA• CLEANUP INCLUDED:SCIENTIFIC ANALYSIS, ECONOMIC AID, AND MEDICAL ASSISTANCE.THE PLANS OF DECONTAMINATION WERE NOT INITIATED UNTIL JULY OF1977, ALMOST A YEAR AFTER THE DISASTER