The abortion issue has surfaced in the race for chairman of the Fairfax County Board of Supervisors.

Although virtually every local candidate agrees that traffic and development are the most important subjects to most voters, a coalition of local antiabortion groups has launched a direct-mail campaign aimed at injecting "family concerns" into the political dialogue.

ChristyAnne Collins, a Springfield resident, recently sent 10,000 letters blasting Supervisor Audrey Moore and County Board Chairman John F. Herrity for failing to "give leadership to issues of family concern" -- principally abortion. In a questionnaire that accompanied the mailing, Herrity said he opposed abortion in most cases but that the county has no legal basis to stop them from being performed at Fairfax Hospital. Moore did not respond.

Collins, who said she represents a coalition of 12 antiabortion organizations, endorsed R. Terry Robarge, an independent candidate for chairman. According to the questionnaire, Robarge opposes all abortions and would stop them from being performed at Fairfax Hospital.

Democratic Supervisor Audrey Moore's popularity in her home district of Annandale is causing a ruckus with the two candidates vying to succeed her.

Moore, who is vacating the Annandale seat to run for county board chairman, has wholeheartedly endorsed Sharon Bulova, a former aide, as her successor.

But this week, many residents were confused when they received brochures in the mail linking Moore and D. Patrick Mullins, Bulova's Republican opponent in Annandale. The red, white and blue brochures declared: "Pat Mullins and Audrey Moore -- the Best Choice."

A group called "Northern Virginia Citizens for Good Government" is listed in small print at the bottom of the brochure, yet it lists no telephone number and is not found in the telephone book. The group's mailing address is P.O. Box 1311, Fairfax.

Bulova said she believes the "Good Government" group is a "front for Pat Mullins. I think he is trying to climb on to Audrey's coattails {despite} Audrey's strong opposition" to him.

Said Mullins campaign manager Robert Dively: "I don't know who the people are . . . . I heard there might be a nonpartisan mailing."

While Moore and her Republican opponent John F. Herrity are busy raising more than $750,000 to run for county chairman, it's nice to know that not all that money is raised at $250-a-plate filet mignon dinners for wealthy businessmen.

Anne Marie Burkett, 12, sent Moore a $4 contribution last week. Along with the money, Anne Marie wrote in a letter dated Oct. 26, 10:10 p.m., that she heard some of Moore's roadside campaign signs had been stolen. "Whoever did it is a real creep," concluded Anne Marie. "I'll be rooting for you on Election Day."

Herrity's office reports that a retired Navy officer sends a $3 check every month or so. "He always includes a note saying 'wish it could be more,' " said Herrity campaign aide Connie Klees.

Prince William County Supervisor Tony Guiffre lately seems to have the Midas touch in reverse.

At the Oct. 20 meeting of the Board of County Supervisors, Guiffre faced three crucial votes affecting his Gainesville District in western Prince William -- and three times he came up on the losing end.

The three votes came on exactly the sort of local issues that can undercut an incumbent: The board approved an unpopular subdivision rezoning, endorsed an even more unpopular site as a leading contender for a new county landfill and rejected a proposal to accelerate work on a flood control project -- all in Guiffre's district.

Several supervisors on the Democratic-controlled board acknowledged privately that some members were eager to embarrass Republican Guiffre in the final days of his reelection battle against Democrat Robert L. Cole.

Cole, a Manassas real estate agent, said the decisions were further evidence of his contention that Guiffre's poor rapport with other supervisors has hurt Gainesville.

In Arlington, where two male Democrats are battling two Republican-backed women for two at-large seats on the county board, one campaign issue seems to be who has more time to devote to public office.

"The county board is theoretically a part-time job," Republican-backed independent Jane H. Bartlett said in a letter to the voters, but she said she would give it her "full-time" attention. She added her Democratic opponents had "other commitments" that would compete with their ability to serve. The job pays $12,423 a year.

Democrat William T. Newman replied with a press release accusing Bartlett of trying to gain political advantage from the fact that he and his running mate, incumbent Albert C. Eisenberg, have full-time jobs. Eisenberg is a lobbyist; Newman, a lawyer.

Newman said it was ironic that Bartlett, a planning commissioner, had raised the issue because "she missed nearly one-third of her Planning Commission meetings over the past two years."

Bartlett said her overall record of attendance at the commission's evening meetings over six years was 82 percent. She attended fewer meetings in 1985 and 1986, she said, because she did not want to leave her teen-age children alone at night. Her husband, a lawyer, traveled a great deal.

The other two candidates in the race also have sparred over this issue. Eisenberg has needled GOP-backed Dorothy T. Grotos, who is running after having resigned from the board four years ago saying she wanted to spend more time with her family. Grotos, who served from 1976 through 1983, has said her family is now grown and she can devote full time to the job.Staff writers John F. Harris, Evelyn Hsu and Mary Jordan contributed to this column.