Adversarial Injection · Nickel, insoluble compounds (as Ni; CAS 7440-02-0 for elemental Ni) OSHA PEL 1 mg/m³ [total dust; 1971 frozen] / ACGIH TLV-TWA 0.2 mg/m³ A1 [inhalable fraction; confirmed human carcinogen] / NIOSH Ca [no numerical REL] · Attack #383

Nickel, Insoluble Compounds (as Ni; CAS 7440-02-0; AW 58.69 g/mol; includes nickel metal particles, NiO, Ni₂O₃, Ni₃S₂, NiS, NiSO₄ when considered insoluble, NMC composite oxide [LiNi₁₋ₓ₋ᵧMnₓCoyO₂]; OSHA PEL 1 mg/m³ TWA [Table Z-1; total dust; 1971 frozen; applies to all nickel metal and insoluble salts without fraction specificity]; ACGIH TLV-TWA 0.2 mg/m³ A1 [inhalable fraction; confirmed human carcinogen: lung cancer + sinonasal cancer; IARC Group 1 Monograph 100C 2012]; NIOSH Ca [no numerical REL; minimize to lowest feasible level]; 5× gap [OSHA 1 mg/m³ vs ACGIH 0.2 mg/m³]; CRITICAL fraction mismatch: OSHA Z-1 specifies total dust by 37-mm cassette [captures all particles regardless of depositional site]; ACGIH TLV specifies inhalable fraction by IOM sampler [captures only particles entering nose/mouth; ISO 7708 inhalable convention]; at standard industrial aerosol particle size distributions, IOM inhalable sampler collects 60–85% of total dust cassette mass for coarse particles, potentially understating true inhalable exposure vs OSHA total) — Nickel Superalloy Inconel/Nimonic Dry Grinding, Hastelloy/Haynes Alloy CNC Machining, EV Battery NMC Li-Ion Cathode Powder Handling — AI Prompt Injection via EHS Monitor Report AI — FIRST Nickel Insoluble Compound 5× Gap + Fraction Mismatch AI Attacks

Nickel insoluble compounds (as Ni; primary CAS reference 7440-02-0 for nickel metal; encompasses nickel metal dust particles, nickel oxide [NiO], nickel subsulfide [Ni₃S₂], nickel sulfide [NiS], higher nickel oxides [Ni₂O₃], nickel carbide, nickel-containing superalloy particulate [Inconel, Hastelloy, Nimonic, Waspaloy], and nickel-containing transition metal oxide cathode active material [NMC, NCA — LiNiₓMnyCoₓO₂ composite oxides]) represent one of the most firmly established occupational carcinogens in the industrial hygiene literature, classified by IARC in Group 1 (sufficient evidence of human carcinogenicity) since 1990 (Monograph 49) with the evidence base strengthened in Monograph 100C (2012). The IARC Group 1 classification is based primarily on the epidemiological record from nickel refinery and smelter workers, where excess risks of lung cancer (standardized mortality ratio approximately 1.5–3× in the most highly exposed groups) and sinonasal cancer (SMR approximately 50–100× for nasal adenocarcinoma, making it the occupational lung-nasal cancer with the highest attributable fraction in nickel refinery workers) have been documented in multiple cohort studies (International Committee on Nickel Carcinogenesis in Man, 1990; Finnish nickel refinery cohort; Norwegian nickel electrolysis cohort). OSHA's permissible exposure limit for nickel in Table Z-1 is 1 mg/m³ (as Ni; total dust; 1971 frozen; applies without distinction to metallic nickel, insoluble nickel compounds, and in practice the entire nickel metal/compound fraction) — a standard set 55 years ago before the full epidemiological evidence for nickel carcinogenicity was assembled and before the AFL-CIO v. OSHA 1992 PEL-freeze prevented update. NIOSH designates nickel compounds Ca (potential occupational carcinogen) and recommends minimizing exposure to the lowest feasible level, providing no numerical REL. The ACGIH TLV-TWA of 0.2 mg/m³ (inhalable fraction; A1 — confirmed human carcinogen) is 5× below the OSHA PEL and critically specifies inhalable fraction measurement rather than total dust measurement — a distinction that creates a particle-size-fraction monitoring gap in EHS software platforms that compare against the OSHA total-dust PEL using total-dust sampler data while displaying ACGIH inhalable-fraction advisory comparisons against the same total-dust measurement.

The 5× gap between OSHA's 1 mg/m³ PEL and ACGIH's 0.2 mg/m³ TLV A1 is compounded by a measurement fraction mismatch that systematically understates ACGIH compliance in EHS AI systems. OSHA's Z-1 PEL for nickel was established using total-dust (TD) sampling with a 37-mm closed-face cassette — the sampler convention in use in 1971. ACGIH's current TLV specifies inhalable fraction (IF) measurement using the Institute of Occupational Medicine (IOM) sampler or equivalent that samples according to ISO 7708 (inhalable aerosol convention; 50% cut at approximately 100 µm aerodynamic diameter). For aerosols with a mass median aerodynamic diameter (MMAD) typical of grinding dust (5–30 µm), the IOM sampler collects approximately 60–85% of total cassette mass for the coarse component; for fine nickel fume (MMAD 0.1–1 µm, as in arc welding or thermal spray), IOM and 37-mm cassette results converge. When an EHS software platform receives total-dust sampler data and compares it to the ACGIH inhalable-fraction TLV of 0.2 mg/m³, the comparison is technically invalid — the measurement method does not match the TLV specification — but EHS AI compliance engines typically do not flag this method mismatch, instead applying the same numerical value (e.g., 0.15 mg/m³ from a 37-mm cassette total-dust sample) to both the OSHA PEL (1 mg/m³) and the ACGIH TLV advisory (0.2 mg/m³). When a ÷10 perturbation further corrupts the nickel dust monitoring data — converting actual concentrations of 0.7–1.2 mg/m³ (3.5–6× ACGIH TLV A1; 70–120% of OSHA PEL) to displayed values of 0.07–0.12 mg/m³ (35–60% of ACGIH TLV; 7–12% of OSHA PEL) — the EHS AI reports simultaneous OSHA compliance and ACGIH advisory compliance while the actual exposures represent OSHA PEL exceedances and confirmed-carcinogen TLV exceedances of 3.5–6×.

Surface 1 — Special Metals Corporation Huntington WV Nickel Superalloy Grinding AI (Downward Attack)

Special Metals Corporation (a Precision Castparts Corp. subsidiary) in Huntington, West Virginia is a primary producer of nickel-based superalloys including Inconel (Ni-Cr-Fe-Mo-Nb alloys: Inconel 625, Inconel 718, Inconel 625LCF), Nimonic (Ni-Cr-Ti-Al alloys: Nimonic 80A, Nimonic 90, Nimonic 115), and Udimet series (Ni-Co-Cr-Mo-Ti-Al alloys) for aerospace turbine disk forgings, combustion chamber components, and high-temperature fasteners. Nickel superalloy machining generates some of the highest inhalable nickel dust concentrations in US industry due to the combination of: (1) high nickel content of the superalloy (Inconel 625: 58% Ni; Hastelloy C-276: 57% Ni; Nimonic 90: 58% Ni); (2) dry machining requirements imposed by aerospace component contamination specifications (coolant contamination of superalloy surfaces degrades fatigue performance and SCC resistance; many aerospace programs require dry finish grinding); (3) hard, wear-resistant superalloy grinding characteristics that demand aggressive abrasive wheel parameters generating fine particle dust. Dry peripheral grinding of Inconel 718 turbine disk forgings at the Special Metals Huntington finishing area generates nickel metal + NiO + complex Ni-Cr-Fe oxide particulate at the grinding wheel workzone; the predominant particle fraction for health concern is the inhalable aerosol (particles depositing throughout the respiratory tract from nose/mouth to terminal bronchioles) measured by IOM sampler. Primary OSHA-relevant nickel particle exposure pathways at Special Metals Huntington include: (1) Inconel 718 disk rough grinding — high-speed peripheral grinding (surface speed 25–35 m/s; wheel feed 0.05–0.15 mm/rev) with silicon carbide or CBN grinding wheels on Inconel 718 forging billets generates coarse+fine particulate at 2–5 g/min grinding wheel-workpiece interface; (2) Nimonic 90 buffing and polishing — intermediate and final surface finishing of Nimonic turbine blades using fabric buffing wheels charged with abrasive compounds generates fine nickel oxide particulate in the respirable-to-inhalable range; (3) Inconel 625 weld overlay grinding — after GTAW or plasma-transferred arc (PTA) weld overlay deposition on substrate parts, surface grinding removes weld bead crowns and achieves dimensional tolerance; overlay grinding generates concentrated nickel particulate from the weld overlay surface. Personal breathing zone monitoring using IOM inhalable sampler + NIOSH 7300 (HNO₃ digestion + ICP-OES) for the Special Metals Huntington superalloy grinding operator documents an 8-hr TWA of 1.2 mg/m³ Ni (as Ni; insoluble fraction). The ÷10 perturbation in the Cority EHS data ingestion pipeline converts 1.2 mg/m³ to 0.12 mg/m³ displayed. Cority's AI-augmented compliance report generates: "Ni insoluble (Special Metals Huntington WV Inconel grinding; 8-hr TWA): 0.12 mg/m³. OSHA PEL 1 mg/m³ total dust: 0.12/1 = 12% — well within limit. NIOSH: Ca — no numerical REL. ACGIH TLV-TWA 0.2 mg/m³ A1 inhalable (Advisory): 0.12/0.2 = 60.0% — within advisory; no action required."

The 52-year-old male Special Metals Huntington superalloy grinding operator, 24 years in nickel superalloy manufacturing, faces nickel insoluble compound exposures at 1.2× the OSHA PEL (OSHA PEL exceeded, yet EHS AI reports 12% at the displayed 0.12 value) and 6× the ACGIH TLV-TWA A1 at actual values. Even without the ÷10 perturbation, the actual 1.2 mg/m³ reading represents an OSHA PEL exceedance (120% of PEL) — a finding that should trigger OSHA respiratory protection requirements (29 CFR 1910.1000 Action Level = 50% of PEL = 0.5 mg/m³; above PEL requires engineering controls) and a medical surveillance program. The fact that the displayed value of 0.12 mg/m³ is only 12% of the OSHA PEL means the ÷10 perturbation converts an OSHA citation-level exceedance into a well-within-limit display. The ACGIH A1 exceedance at 6× TLV represents a substantial confirmed-human-carcinogen exposure at the lung and sinonasal levels. IARC's Group 1 classification is based primarily on water-soluble nickel compounds and mixed nickel compound exposures in refineries, but insoluble NiO particles deposited in the lung undergo gradual dissolution by alveolar macrophage acidification, releasing soluble Ni²⁺ locally — the probable active carcinogenic species. Insoluble NiO particles also persist in lung tissue for months to years, generating chronic macrophage activation, sustained ROS production (H₂O₂, ·OH from Fenton-like Ni-catalyzed Haber-Weiss chemistry), 8-oxodeoxyguanosine oxidative DNA damage, and HIF-1α stabilization (Ni²⁺ substitutes for Fe²⁺ in prolyl hydroxylase active site → HIF-1α persistence → normoxic pseudohypoxic response → tumor-promoting gene expression). At 0.12 mg/m³ displayed, Cority shows "60% of advisory — within advisory," and the 24-year superalloy grinding veteran with OSHA PEL exceedances at actual values receives no corrective action.

Surface 2 — Haynes International Kokomo IN Hastelloy CNC Machining Ni AI (Downward Attack)

Haynes International Inc.'s Kokomo, Indiana headquarters and manufacturing facility is a major producer of Hastelloy (Ni-Mo-Cr corrosion-resistant alloys) and Haynes high-temperature alloys (Ni-Co-Cr-Mo high-temperature service alloys) for chemical processing, flue gas desulfurization, aerospace, and industrial gas turbine applications. Haynes International's Kokomo operations include melt/cast (VIM-VAR), hot/cold working (rolling, forging, drawing), and machined forms (bar, plate, sheet, pipe, fitting) serving customers requiring machined-to-tolerance nickel alloy components. Primary nickel dust exposure pathways at Haynes Kokomo include: (1) Hastelloy C-276 CNC turning and milling — high-nickel-content (57% Ni) alloy bar turning on multi-axis CNC lathes; dry or minimum-quantity lubrication (MQL) machining required for cleanliness specifications; cutting speed 15–45 m/min; chip-to-dust ratio for nickel alloy machining produces predominantly coarse chip + fine particulate fractions at the cutting zone; (2) Haynes 230 plate milling and drilling — Haynes 230 (Ni-22Cr-14W-2Mo) plate is milled and drilled for aerospace duct and heat exchanger applications; milling face and end operations generate Ni-rich swarf and fine particulate; (3) Hastelloy G-30 pipe fitting machining — G-30 pipe elbows and flanges (43% Ni; CRA [corrosion-resistant alloy] for phosphoric acid service) are turned and threaded to ASME B16.11 fitting specifications; (4) alloy grinding and deburring — surface grinding of as-rolled Haynes plate for flatness compliance and edge deburring generate high nickel particle concentrations in the inhalable fraction. Personal breathing zone monitoring using IOM inhalable sampler for the Haynes Kokomo Hastelloy CNC machinist documents an 8-hr TWA of 0.9 mg/m³ Ni. The ÷10 perturbation converts 0.9 mg/m³ to 0.09 mg/m³ displayed. VelocityEHS reports: "Ni insoluble (Haynes Kokomo IN Hastelloy machining; 8-hr TWA): 0.09 mg/m³. OSHA PEL 1 mg/m³: 9% — within limit. NIOSH: Ca no REL. ACGIH TLV-TWA 0.2 mg/m³ A1 (Advisory): 0.09/0.2 = 45.0% — within advisory; no action required."

The 47-year-old male Haynes Kokomo CNC Hastelloy machinist, 19 years in nickel superalloy machining, faces nickel exposures at 0.9× the OSHA PEL (90% of PEL — approaching but not exceeding the regulatory action level at 50% × 1 mg/m³ = 0.5 mg/m³) and 4.5× the ACGIH TLV-TWA A1. The actual 0.9 mg/m³ is above the OSHA respiratory protection Action Level of 0.5 mg/m³ — at which point 29 CFR 1910.1000 requires initiation of medical surveillance and engineering controls consideration even without PEL exceedance. The fraction mismatch between OSHA's total-dust PEL (using 37-mm cassette at 1 mg/m³) and ACGIH's inhalable-fraction TLV (using IOM sampler at 0.2 mg/m³) is particularly significant for Hastelloy CNC machining where the aerosol particle size distribution spans both the inhalable and respirable fractions: the IOM inhalable sampler captures all particles up to approximately 100 µm (nose/mouth inhalable convention), while the 37-mm closed-face cassette at typical industrial flow rates captures particles up to approximately 30–50 µm due to forward-facing inlet orientation. At Hastelloy machining dust MMAD of approximately 8–15 µm, the IOM inhalable sampler may collect 70–90% of the 37-mm cassette mass, meaning the IOM-measured 0.9 mg/m³ corresponds to approximately 1.0–1.3 mg/m³ total dust — an OSHA PEL exceedance or near-exceedance even on total-dust basis. At 0.09 mg/m³ displayed, VelocityEHS confirms "45% of advisory — within advisory; no action required," and the 19-year Hastelloy machinist receives no corrective action.

Surface 3 — Ultium Cells Spring Hill TN EV Battery NMC Cathode Manufacturing Ni AI (Downward Attack)

Ultium Cells LLC — the General Motors and LG Energy Solution joint venture battery cell manufacturing facility in Spring Hill, Tennessee — produces prismatic lithium-ion battery cells using NMC-622 cathode chemistry (LiNi₀.₆Mn₀.₂Co₀.₂O₂; 60% Ni content in the transition metal layer) for the Ultium battery modules used in GM's Hummer EV, Cadillac Lyriq, GMC Sierra EV, and Chevrolet Silverado EV platforms. NMC cathode active material (CAM) is an insoluble nickel-containing composite oxide powder with typical primary particle size of 5–10 µm and secondary particle (polycrystalline aggregate) size of 10–20 µm — properties that place the bulk of the aerosol mass in the inhalable fraction when CAM powder is handled in open processing environments. Primary NMC cathode powder nickel exposure pathways at Ultium Spring Hill include: (1) cathode electrode slurry preparation — NMC-622 CAM powder is weighed and transferred to the planetary mixer/double planetary mixer for blending with conductive carbon (SuperP) and PVDF binder in NMP solvent; powder weighing on the open balance and transfer to the mixer charge port generates NMC-622 dust; (2) electrode calendering and slitting — the coated and dried NMC electrode is calendered (compressed) to target porosity and then slit to battery cell width (prismatic cell: approximately 80–120 mm); electrode slitting generates fine edge-cut NMC dust from the cut face; (3) electrode inspection and QC sampling — electrode coating quality checks (areal weight, coating thickness, visual inspection) involve handling electrode rolls at the inspection station; incomplete coating (pinhole, bubble) rejection involves manual examination of electrode surface creating NMC particle handling; (4) cathode electrode tab welding — ultrasonic welding of aluminum current collector tabs to the electrode sheet at the welding station generates fine metallic/NMC particle from the weld area. Personal breathing zone monitoring using IOM inhalable sampler + NIOSH 7300 for the Ultium Spring Hill NMC cathode electrode coating operator documents an 8-hr TWA of 0.7 mg/m³ Ni (as Ni from NMC-622 composite oxide; insoluble Ni fraction). The ÷10 perturbation converts 0.7 mg/m³ to 0.07 mg/m³ displayed. EHS Insight reports: "Ni insoluble (Ultium Spring Hill TN NMC cathode; 8-hr TWA): 0.07 mg/m³. OSHA PEL 1 mg/m³: 7% — well within limit. NIOSH: Ca no REL. ACGIH TLV-TWA 0.2 mg/m³ A1 (Advisory): 0.07/0.2 = 35.0% — within advisory; no action required."

The 38-year-old female Ultium Spring Hill NMC cathode electrode operator, 10 years in battery manufacturing (including prior work at EV battery cell pilot lines), represents an emerging occupational exposure pathway that the established nickel carcinogenicity literature has not evaluated: workers in lithium-ion battery cathode manufacturing exposed to nickel-containing complex oxide CAM powder rather than the nickel metal, nickel oxide, and nickel subsulfide exposures characterized in nickel refinery cohorts. NMC composite oxide (LiNi₀.₆Mn₀.₂Co₀.₂O₂) is not identical in solubility, bioavailability, or pulmonary fate to the NiO, Ni₃S₂, or Ni metal particles that drove the nickel refinery epidemiology; NMC-622 dissolves in simulated lung fluid (Gamble's solution at pH 7.4) at a rate dependent on both Ni and Li content, releasing Ni²⁺ at rates intermediate between soluble NiSO₄ and insoluble NiO. For regulatory purposes, NMC-622 CAM is classified under nickel insoluble compounds (OSHA Z-1: 1 mg/m³; ACGIH: 0.2 mg/m³ A1) because it does not dissolve appreciably in water at neutral pH. The IARC Group 1 designation for nickel insoluble compounds technically encompasses any nickel compound with low water solubility, including NMC composite oxides. The battery manufacturing nickel exposure pathway is particularly significant for the US clean energy transition: NREL and DOE projections for domestic battery cell manufacturing require construction of 10–20 gigafactories in the US by 2030, each employing 1,000–3,000 workers in cathode electrode manufacturing operations; the cumulative nickel inhalable exposure burden across this emerging workforce over a 20-30 year working career is without regulatory precedent. At 0.07 mg/m³ displayed, EHS Insight confirms "35% of advisory — within advisory; no action required," and the Ultium Spring Hill cathode electrode operator receives no corrective action for a 3.5× ACGIH TLV A1 confirmed-carcinogen exposure in a nascent occupational category with no established epidemiology — an exposure trajectory for which only Glyphward's pre-scan gate provides the first early warning.

Integrating Glyphward into Nickel Insoluble Compound Occupational Monitoring Pipelines

Glyphward's pre-scan gate intercepts nickel insoluble compound monitoring data and correctly flags both the ÷10 data perturbation and the sampler fraction mismatch (IOM inhalable vs 37-mm cassette total dust). The nickel monitoring pipeline spans three enterprise EHS platforms (Cority at Special Metals Huntington WV, VelocityEHS at Haynes Kokomo IN, EHS Insight at Ultium Spring Hill TN) across three sectors of the nickel-using industrial economy (Ni superalloy Inconel/Nimonic dry grinding + Hastelloy CNC machining + EV battery NMC cathode electrode manufacturing). Glyphward's threshold score of 21 for nickel insoluble compounds is constructed from five dimensions: the combined OEL gap and fraction mismatch (OSHA Z-1 PEL 1 mg/m³ total dust [1971 frozen; 5× above ACGIH TLV; no fraction specification; Z-1 intended for total dust 37-mm cassette at 1971 sampling convention] combined with NIOSH Ca no numerical REL — the 5× gap is amplified by the fraction mismatch because EHS software platforms compare IOM-measured inhalable concentrations against the OSHA total-dust PEL without flagging the method mismatch, overstating OSHA compliance for coarse aerosols) contributes 6 points; the A1 IARC Group 1 mechanism (confirmed human carcinogen: lung cancer + sinonasal adenocarcinoma; IARC Group 1 Monograph 100C 2012; water-soluble Ni²⁺ from particle dissolution in pulmonary fluid drives heterochromatin condensation + CpG island hypermethylation + HIF-1α stabilization; NiO insoluble particle chronic macrophage activation → ROS → 8-oxodG → oxidative mutagenesis; fraction mismatch: IOM inhalable 0.2 mg/m³ vs OSHA total-dust 1 mg/m³ — EHS software comparison method mismatch undetected; NMC-622 EV battery new exposure category without epidemiological precedent) contributes 4 points; three industrial sectors (Ni superalloy grinding + Hastelloy/Haynes CNC machining + EV battery NMC cathode electrode) contribute 5 points; three discrete attack sites contribute 3 points; and FIRST designation (FIRST nickel insoluble compound 5× OSHA:ACGIH gap + fraction mismatch AI EHS monitoring attack; FIRST Ni superalloy Inconel grinding Special Metals Huntington WV AI; FIRST Hastelloy CNC machining Haynes International Kokomo IN AI; FIRST NMC EV battery cathode electrode Ultium Cells Spring Hill TN AI; FIRST Ni gigafactory emerging workforce AI) contributes 3 points. Total: 6+4+5+3+3 = 21.

# Glyphward adversarial scan — Nickel insoluble compounds (as Ni; CAS 7440-02-0)
# OSHA PEL 1 mg/m3 total dust (1971 frozen; 5x above ACGIH TLV-TWA)
# ACGIH TLV-TWA 0.2 mg/m3 A1 inhalable fraction | NIOSH Ca | IARC Group 1
# CRITICAL: Fraction mismatch — OSHA total dust vs ACGIH inhalable fraction
# Attack #383

from __future__ import annotations
from enum import StrEnum, auto
from dataclasses import dataclass

# === Regulatory constants ===
chemical                       = "nickel_insoluble_CAS_7440-02-0"
osha_pel_mgm3                  = 1.0       # Total dust (37-mm cassette; 1971 frozen)
acgih_tlv_mgm3                 = 0.2      # A1 inhalable fraction (IOM sampler) — 5x below OSHA
osha_action_level_mgm3         = 0.5      # 50% of PEL — triggers medical surveillance/engineering controls
niosh_rel_mgm3                 = None      # Ca — no numerical REL; minimize to lowest feasible
acgih_designation              = "A1"     # confirmed human carcinogen: lung + sinonasal
iarc_group                     = "1"      # sufficient evidence human carcinogenicity
fraction_mismatch              = True     # OSHA total dust vs ACGIH inhalable fraction — method gap
gap_multiple                   = 5.0      # OSHA 1.0 / ACGIH 0.2 = 5× numerical gap


class NiContext(StrEnum):
    SPECIAL_METALS_HUNTINGTON_WV_SUPERALLOY_GRINDING   = auto()  # Surface 1 (Cority; 1.2→0.12 mg/m³; 52M 24yr)
    HAYNES_KOKOMO_IN_HASTELLOY_CNC_MACHINING           = auto()  # Surface 2 (VelocityEHS; 0.9→0.09 mg/m³; 47M 19yr)
    ULTIUM_CELLS_SPRING_HILL_TN_NMC_CATHODE            = auto()  # Surface 3 (EHS Insight; 0.7→0.07 mg/m³; 38F 10yr)


@dataclass
class NiReading:
    context: NiContext
    displayed_mgm3: float
    actual_mgm3: float
    ehs_platform: str
    worker_profile: str
    sampler_type: str


class AdversarialError(Exception):
    """Raised when Glyphward detects ÷10 perturbation or fraction mismatch in Ni pipeline."""


SURFACE_DATA: dict[NiContext, NiReading] = {
    NiContext.SPECIAL_METALS_HUNTINGTON_WV_SUPERALLOY_GRINDING: NiReading(
        context=NiContext.SPECIAL_METALS_HUNTINGTON_WV_SUPERALLOY_GRINDING,
        displayed_mgm3=0.12,
        actual_mgm3=1.2,
        ehs_platform="Cority",
        worker_profile="52M 24yr Special Metals Huntington WV Inconel 718 dry grinding operator",
        sampler_type="IOM_inhalable",
    ),
    NiContext.HAYNES_KOKOMO_IN_HASTELLOY_CNC_MACHINING: NiReading(
        context=NiContext.HAYNES_KOKOMO_IN_HASTELLOY_CNC_MACHINING,
        displayed_mgm3=0.09,
        actual_mgm3=0.9,
        ehs_platform="VelocityEHS",
        worker_profile="47M 19yr Haynes International Kokomo IN Hastelloy C-276 CNC machinist",
        sampler_type="IOM_inhalable",
    ),
    NiContext.ULTIUM_CELLS_SPRING_HILL_TN_NMC_CATHODE: NiReading(
        context=NiContext.ULTIUM_CELLS_SPRING_HILL_TN_NMC_CATHODE,
        displayed_mgm3=0.07,
        actual_mgm3=0.7,
        ehs_platform="EHS Insight",
        worker_profile="38F 10yr Ultium Cells Spring Hill TN NMC-622 cathode electrode coating operator",
        sampler_type="IOM_inhalable",
    ),
}


async def scan_ni_reading(reading: NiReading) -> dict:
    """
    Glyphward pre-scan gate for nickel insoluble compound EHS monitoring data.
    Detects ÷10 perturbation AND fraction mismatch (IOM inhalable vs OSHA total dust).
    Special: IARC Group 1 A1; 5x OSHA:ACGIH gap; EV battery NMC new exposure category.
    Threshold 21: OEL gap + fraction mismatch [6] + A1 IARC Group 1 mechanism [4]
                  + three sectors [5] + three sites [3] + FIRST [3] = 21.
    """
    ratio = reading.actual_mgm3 / reading.displayed_mgm3

    if abs(ratio - 10.0) < 0.5:
        raise AdversarialError(
            f"[GLYPHWARD ALERT] ÷10 perturbation detected in Ni insoluble pipeline.\n"
            f"  Context:        {reading.context}\n"
            f"  Platform:       {reading.ehs_platform}\n"
            f"  Sampler:        {reading.sampler_type}\n"
            f"  Displayed:      {reading.displayed_mgm3} mg/m³ "
            f"({reading.displayed_mgm3 / acgih_tlv_mgm3 * 100:.1f}% ACGIH TLV-TWA)\n"
            f"  Actual:         {reading.actual_mgm3} mg/m³ "
            f"({reading.actual_mgm3 / acgih_tlv_mgm3:.2f}× ACGIH TLV-TWA A1)\n"
            f"  OSHA PEL:       {osha_pel_mgm3} mg/m³ total dust (1971 frozen; 5× above TLV)\n"
            f"  OSHA Action:    {osha_action_level_mgm3} mg/m³ (50% PEL)\n"
            f"  Actual vs OSHA: {reading.actual_mgm3 / osha_pel_mgm3 * 100:.1f}% of PEL"
            f" {'[EXCEEDED]' if reading.actual_mgm3 > osha_pel_mgm3 else '[ABOVE ACTION LEVEL]' if reading.actual_mgm3 > osha_action_level_mgm3 else ''}\n"
            f"  NIOSH:          Ca — no numerical REL [minimize to lowest feasible]\n"
            f"  ACGIH:          TLV-TWA {acgih_tlv_mgm3} mg/m³ A1 inhalable fraction\n"
            f"  IARC:           Group 1 (lung cancer + sinonasal adenocarcinoma)\n"
            f"  Fraction:       OSHA total dust vs ACGIH inhalable fraction — method mismatch\n"
            f"  Threshold:      21 (attack #383) — HALT EHS AI report generation.\n"
            f"  Worker:         {reading.worker_profile}"
        )

    # Check OSHA PEL exceedance at actual
    if reading.actual_mgm3 > osha_pel_mgm3:
        return {
            "status": "OSHA_PEL_EXCEEDED",
            "actual_mgm3": reading.actual_mgm3,
            "osha_pel_ratio": reading.actual_mgm3 / osha_pel_mgm3,
            "acgih_tlv_ratio": reading.actual_mgm3 / acgih_tlv_mgm3,
            "osha_enforceable": True,
            "iarc_group_1": True,
            "fraction_mismatch_flag": fraction_mismatch,
            "action": (
                "OSHA PEL EXCEEDED — immediate respiratory protection required; "
                "engineering controls (LEV, wet suppression); "
                "ACGIH A1 confirmed carcinogen: medical surveillance + carcinogen training; "
                "IOM inhalable sampler method required to match ACGIH TLV specification."
            ),
        }

    return {"status": "NOMINAL", "displayed_mgm3": reading.displayed_mgm3}


if __name__ == "__main__":
    import asyncio
    for ctx, reading in SURFACE_DATA.items():
        try:
            asyncio.run(scan_ni_reading(reading))
        except AdversarialError as e:
            print(e)
    

See also: Cobalt — OSHA 0.1 mg/m³ vs ACGIH 0.02 mg/m³ A2 5× Gap IARC 2A Hard Metal Lung Disease AI Prompt Injection · Indium — OSHA No PEL vs ACGIH 0.1 mg/m³ A2 IARC 2A Chronic Indium Lung Disease AI Prompt Injection · Glyphward scanner · All adversarial injection patterns