RADIO shock jock Alan Jones has launched a blistering attack on the coal seam gas industry.

During an address to the National Press Club, Mr Jones said both sides of politics were "in bed" with the CSG industry and said CSG posed massive risks to prime agricultural land, underground water and public health.

Mr Jones is waging a campaign against mining on prime agricultural land, having also addressed a rally on the topic last week.

"Miners are equipped to … rip off and rob the farmers," Mr Jones said.

"No-one wants to be the last man holding out and mining companies prey on that."

Areas of NSW and Queensland were about to become a "pin cushion of CSG projects", according to Mr Jones.

Mr Jones also said Environmental Effects statements were generally prepared by consultants working for mining companies.

"Of course they’re bollocks," Mr Jones said.

"The hired consultant becomes an advocate for the mining company."

No effective limits were being imposed on the amount of water CSG companies were taking from underground aquifers, according to Mr Jones.

Risks of mining companies permanently polluting aquifers were very real, he said.

Only two of the 23 chemicals used for "fracking" – using a mix of chemicals, sand and water to fracture coal seams in order to access the gas – had been properly assessed in Australia, he said.

"This has the potential to devastate agricultural land and affect public health.

Almost all political parties are in bed with these people," Mr Jones said.

Greens leader Bob Brown has already tweeted his agreement with Mr Jones' views on CSG.