Alarm bells sound over oil spill dispersant use 
PTTGC admits chemicals risk environment harm 
 Experts are Worried the chemical dispersant being used in the oil spill clean-up operation in Rayong province could cause environmental damage.They have urged PTT Global Chemical Plc (PTTGC) TO reveal what type of dispersants are being used.
 Their call came after Pollution Control Department chief Wichian Jungrungreon admitted yesterday that using dispersants could harm the environment
 PTTGC has remained silent about what chemical it is using but also said they could pose for a hazard to the environment and people’s health.