seodata.dev

keyword

is carbon dioxide harmful to humans

Monthly search volume and cost-per-click data for "is carbon dioxide harmful to humans" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=is+carbon+dioxide+harmful+to+humans&country=us" +--------------+------------------+ | volume | 140 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-28 | +--------------+------------------+
All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
why is carbon dioxide harmful 320 $0 16/20
is carbon dioxide harmful 320 $0.07 15/20
why is co2 harmful 170 $0 15/20
carbon dioxide harmful 140 $0 17/20
is carbon dioxide dangerous for humans 90 $0 15/20
carbon dioxide bad for you 70 $0 16/20
is co2 harmful to humans 70 $0 16/20
is co2 gas harmful 30 $0 17/20
is co2 bad for humans 30 $0 15/20
why is co2 dangerous 30 $0 15/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://api.seodata.dev/v1/keyword?q=is+carbon+dioxide+harmful+to+humans&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt