1. Section 1 1 Introduction 1 Section 2 2 Drought Hazard Profile 1



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12.3Frequency of Occurrence


On average, the State of Louisiana receives about 5,000 reports of accidental hazardous materials spills annually. Most accidental releases have occurred while chemicals were being transported along major highways. Table 16 presents the number of hazardous materials spills and complaints reported to the Louisiana Department of Environmental Quality by month for 2000 through 2002.

Table 16: Louisiana Hazardous Materials Complains and Spills by Month, 2000-2002.

Month

2000

2001

2002

Complaints

Spills

Complaints

Spills

Complaints

Spills

January

234

453

229

500

336

398

February

301

435

240

372

356

394

March

303

503

385

379

371

386

April

328

389

374

393

391

386

May

360

458

411

434

371

400

June

295

465

337

572

293

367

July

282

356

303

421

339

419

August

295

403

311

421

365

350

September

241

403

293

404

313

419

October

315

353

432

474

379

532

November

226

387

348

387

237

363

December

192

390

272

333

220

403

Total for the Year

3372

4995

3935

5029

3971

4817

Source: Louisiana Department of Environmental Quality, http://www.deq.state.la.us/surveillance/emergresp/complaintspillcount.htm

12.4Severity


The severity of a hazardous materials release depends upon the type of material released, the amount of the release, the proximity to populations or sensitive areas like wetlands or waterways. As previous hazardous materials incidents in Louisiana have shown, the release of materials can lead to injuries or evacuation of thousands of nearby residents. Nuclear releases are among the most feared of technological hazards because they can cause widespread death or long-term illness to humans and animals and contaminate the environment for decades.

Because the state’s “chemical corridor”-- the intense concentration of petrochemical plants—lies along transportation routes between New Orleans and Baton Rouge in southern Louisiana, scientists and other hazard analysts theorize that hurricane winds, storm surge, or flooding could lead to an accidental release of a hazardous material from a fixed-site or from a transport mode on one of the highways, railroads, or waterways. A professor for the Institute for Environmental Studies at Louisiana State University theorizes that airborne debris could breach pipes or tanks, floods could break tanks away from facilities, and pipelines could be ruptured by floating debris. Such releases can lead to widespread contamination of Louisiana’s coastline and to inland areas, explosions and fire, and death or injury to humans, plants, and animals.




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