Tony Pigott, ECB pitch selector, said there was an unpredictable bounce and Adams described the ball that hit him as "pretty extreme."
He told BBC Radio Solent: "One ball had slightly gone up and hit Michael Carberry earlier and there were a couple in the Glamorgan innings.
"Fortunately there's no damage done. If it goes again and it's doing it off that sort of length then it does fall into the officials' hands."
Glamorgan hosted the first test of the Ashes series and it was heavily criticised then by both England and Australia.
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The teams will share a point each after the game was declared as a no result and Glamorgan's captain Jacques Rudolph backed the decision on Twitter.
Glamorgan also assured spectators they would be entitled to a full refund.
Glamorgan's Chief Executive Hugh Morris said the club have launched an internal investigation and apologised for the abandonment.
He told Glamorgan's website: "I am desperately disappointed that our match has been abandoned but the umpires were left with no alternative as player safety is their primary concern.
"I would like to apologise to the members and supporters of Glamorgan and Hampshire and to all of those that were watching the live broadcast.
"We will launch an immediate investigation into the circumstances around the preparation of this pitch.
"I will speak to all relevant parties to paint a definitive picture of exactly what has happened and what measures we need to put in place to prevent anything like this happening again."